685249104 has 20 divisors (see below), whose sum is σ = 1770226976. Its totient is φ = 228416352.

The previous prime is 685249093. The next prime is 685249121. The reversal of 685249104 is 401942586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7137964 + ... + 7138059.

Almost surely, 2^685249104 is an apocalyptic number.

It is an amenable number.

685249104 is an abundant number, since it is smaller than the sum of its proper divisors (1084977872).

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

685249104 is a wasteful number, since it uses less digits than its factorization.

685249104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14276034 (or 14276028 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 685249104 is about 26177.2631113339. The cubic root of 685249104 is about 881.6228250365.

The spelling of 685249104 in words is "six hundred eighty-five million, two hundred forty-nine thousand, one hundred four".