685167338 has 16 divisors (see below), whose sum is σ = 1035868416. Its totient is φ = 339888960.

The previous prime is 685167319. The next prime is 685167361. The reversal of 685167338 is 833761586.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 685167292 and 685167301.

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, 133895 + ... + 138917.

It is an arithmetic number, because the mean of its divisors is an integer number (64741776).

Almost surely, 2^685167338 is an apocalyptic number.

685167338 is a deficient number, since it is larger than the sum of its proper divisors (350701078).

685167338 is a wasteful number, since it uses less digits than its factorization.

685167338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5549.

The product of its digits is 725760, while the sum is 47.

The square root of 685167338 is about 26175.7012895548. The cubic root of 685167338 is about 881.5877576725.

The spelling of 685167338 in words is "six hundred eighty-five million, one hundred sixty-seven thousand, three hundred thirty-eight".