699874560 has 576 divisors, whose sum is σ = 3108188160. Its totient is φ = 144875520.

The previous prime is 699874543. The next prime is 699874583. The reversal of 699874560 is 65478996.

699874560 is a `hidden beast` number, since 6 + 9 + 9 + 8 + 74 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 699874497 and 699874506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2660989 + ... + 2661251.

It is an arithmetic number, because the mean of its divisors is an integer number (5396160).

Almost surely, 2^699874560 is an apocalyptic number.

699874560 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 699874560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1554094080).

699874560 is an abundant number, since it is smaller than the sum of its proper divisors (2408313600).

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

699874560 is a wasteful number, since it uses less digits than its factorization.

699874560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 699874560 is about 26455.1424112591. The cubic root of 699874560 is about 887.8509611085.

It can be divided in two parts, 69987 and 4560, that added together give a palindrome (74547).

The spelling of 699874560 in words is "six hundred ninety-nine million, eight hundred seventy-four thousand, five hundred sixty".