685893320 has 32 divisors (see below), whose sum is σ = 1763726400. Its totient is φ = 235163328.

The previous prime is 685893317. The next prime is 685893347. The reversal of 685893320 is 23398586.

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, 1224530 + ... + 1225089.

It is an arithmetic number, because the mean of its divisors is an integer number (55116450).

Almost surely, 2^685893320 is an apocalyptic number.

It is an amenable number.

685893320 is an abundant number, since it is smaller than the sum of its proper divisors (1077833080).

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

685893320 is a wasteful number, since it uses less digits than its factorization.

685893320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449637 (or 2449633 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 685893320 is about 26189.5650975727. The cubic root of 685893320 is about 881.8990154211.

The spelling of 685893320 in words is "six hundred eighty-five million, eight hundred ninety-three thousand, three hundred twenty".