685965364 has 48 divisors (see below), whose sum is σ = 1407248640. Its totient is φ = 286513920.

The previous prime is 685965361. The next prime is 685965373. The reversal of 685965364 is 463569586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685965361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174994 + ... + 178870.

It is an arithmetic number, because the mean of its divisors is an integer number (29317680).

Almost surely, 2^685965364 is an apocalyptic number.

It is an amenable number.

685965364 is an abundant number, since it is smaller than the sum of its proper divisors (721283276).

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

685965364 is a wasteful number, since it uses less digits than its factorization.

685965364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048 (or 4046 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 52.

The square root of 685965364 is about 26190.9404947589. The cubic root of 685965364 is about 881.9298916067.

The spelling of 685965364 in words is "six hundred eighty-five million, nine hundred sixty-five thousand, three hundred sixty-four".