685176960 has 256 divisors, whose sum is σ = 2384645760. Its totient is φ = 166330368.

The previous prime is 685176941. The next prime is 685176977. The reversal of 685176960 is 69671586.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 31 ways as a sum of consecutive naturals, for example, 2420979 + ... + 2421261.

Almost surely, 2^685176960 is an apocalyptic number.

685176960 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 685176960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1192322880).

685176960 is an abundant number, since it is smaller than the sum of its proper divisors (1699468800).

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

685176960 is a wasteful number, since it uses less digits than its factorization.

685176960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 685176960 is about 26175.8850853223. The cubic root of 685176960 is about 881.5918844492.

The spelling of 685176960 in words is "six hundred eighty-five million, one hundred seventy-six thousand, nine hundred sixty".