699532880 has 80 divisors (see below), whose sum is σ = 1731585600. Its totient is φ = 262056960.

The previous prime is 699532853. The next prime is 699532931. The reversal of 699532880 is 88235996.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132695 + ... + 137865.

It is an arithmetic number, because the mean of its divisors is an integer number (21644820).

Almost surely, 2^699532880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699532880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865792800).

699532880 is an abundant number, since it is smaller than the sum of its proper divisors (1032052720).

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

699532880 is a wasteful number, since it uses less digits than its factorization.

699532880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5292 (or 5286 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 699532880 is about 26448.6838992038. The cubic root of 699532880 is about 887.7064541191.

The spelling of 699532880 in words is "six hundred ninety-nine million, five hundred thirty-two thousand, eight hundred eighty".