699820560 has 120 divisors (see below), whose sum is σ = 2437344000. Its totient is φ = 186613632.

The previous prime is 699820543. The next prime is 699820591. The reversal of 699820560 is 65028996.

699820560 is a `hidden beast` number, since 6 + 9 + 9 + 82 + 0 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1441 + ... + 37439.

It is an arithmetic number, because the mean of its divisors is an integer number (20311200).

Almost surely, 2^699820560 is an apocalyptic number.

699820560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699820560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218672000).

699820560 is an abundant number, since it is smaller than the sum of its proper divisors (1737523440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

699820560 is a wasteful number, since it uses less digits than its factorization.

699820560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36027 (or 36009 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 699820560 is about 26454.1217960453. The cubic root of 699820560 is about 887.8281259759.

The spelling of 699820560 in words is "six hundred ninety-nine million, eight hundred twenty thousand, five hundred sixty".