685527320 has 32 divisors (see below), whose sum is σ = 1544501520. Its totient is φ = 273843840.

The previous prime is 685527253. The next prime is 685527341. The reversal of 685527320 is 23725586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19835 + ... + 42005.

Almost surely, 2^685527320 is an apocalyptic number.

It is an amenable number.

685527320 is an abundant number, since it is smaller than the sum of its proper divisors (858974200).

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

685527320 is a wasteful number, since it uses less digits than its factorization.

685527320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22955 (or 22951 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 685527320 is about 26182.5766493674. The cubic root of 685527320 is about 881.7421239341.

The spelling of 685527320 in words is "six hundred eighty-five million, five hundred twenty-seven thousand, three hundred twenty".