685890602 has 16 divisors (see below), whose sum is σ = 1090184832. Its totient is φ = 322526400.

The previous prime is 685890563. The next prime is 685890607. The reversal of 685890602 is 206098586.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (685890607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42383 + ... + 56285.

It is an arithmetic number, because the mean of its divisors is an integer number (68136552).

Almost surely, 2^685890602 is an apocalyptic number.

685890602 is a deficient number, since it is larger than the sum of its proper divisors (404294230).

685890602 is a wasteful number, since it uses less digits than its factorization.

685890602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15373.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 685890602 is about 26189.5132066253. The cubic root of 685890602 is about 881.8978505147.

The spelling of 685890602 in words is "six hundred eighty-five million, eight hundred ninety thousand, six hundred two".