685074256 has 20 divisors (see below), whose sum is σ = 1355573952. Its totient is φ = 335248736.

The previous prime is 685074233. The next prime is 685074259. The reversal of 685074256 is 652470586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685074259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454750 + ... + 456253.

Almost surely, 2^685074256 is an apocalyptic number.

It is an amenable number.

685074256 is a deficient number, since it is larger than the sum of its proper divisors (670499696).

685074256 is a wasteful number, since it uses less digits than its factorization.

685074256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911058 (or 911052 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 685074256 is about 26173.9232061225. The cubic root of 685074256 is about 881.5478337671.

The spelling of 685074256 in words is "six hundred eighty-five million, seventy-four thousand, two hundred fifty-six".