685379676 has 24 divisors (see below), whose sum is σ = 1629394704. Its totient is φ = 224149120.

The previous prime is 685379579. The next prime is 685379711. The reversal of 685379676 is 676973586.

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, 538185 + ... + 539456.

It is an arithmetic number, because the mean of its divisors is an integer number (67891446).

Almost surely, 2^685379676 is an apocalyptic number.

It is an amenable number.

685379676 is an abundant number, since it is smaller than the sum of its proper divisors (944015028).

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

685379676 is a wasteful number, since it uses less digits than its factorization.

685379676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077701 (or 1077699 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 57.

The square root of 685379676 is about 26179.7569889409. The cubic root of 685379676 is about 881.6788182727.

The spelling of 685379676 in words is "six hundred eighty-five million, three hundred seventy-nine thousand, six hundred seventy-six".