685313376 has 48 divisors (see below), whose sum is σ = 1962491328. Its totient is φ = 207670400.

The previous prime is 685313357. The next prime is 685313383. The reversal of 685313376 is 673313586.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 323430 + ... + 325541.

It is an arithmetic number, because the mean of its divisors is an integer number (40885236).

Almost surely, 2^685313376 is an apocalyptic number.

685313376 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

685313376 is an abundant number, since it is smaller than the sum of its proper divisors (1277177952).

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

685313376 is a wasteful number, since it uses less digits than its factorization.

685313376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648995 (or 648987 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 685313376 is about 26178.4907127970. The cubic root of 685313376 is about 881.6503877094.

The spelling of 685313376 in words is "six hundred eighty-five million, three hundred thirteen thousand, three hundred seventy-six".