685696674 has 16 divisors (see below), whose sum is σ = 1476885312. Its totient is φ = 210983568.

The previous prime is 685696667. The next prime is 685696699. The reversal of 685696674 is 476696586.

It is a happy 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, 4395414 + ... + 4395569.

It is an arithmetic number, because the mean of its divisors is an integer number (92305332).

Almost surely, 2^685696674 is an apocalyptic number.

685696674 is an abundant number, since it is smaller than the sum of its proper divisors (791188638).

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

685696674 is a wasteful number, since it uses less digits than its factorization.

685696674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8791001.

The product of its digits is 13063680, while the sum is 57.

The square root of 685696674 is about 26185.8105469355. The cubic root of 685696674 is about 881.8147270511.

The spelling of 685696674 in words is "six hundred eighty-five million, six hundred ninety-six thousand, six hundred seventy-four".