685163234 has 16 divisors (see below), whose sum is σ = 1179251136. Its totient is φ = 292470000.

The previous prime is 685163233. The next prime is 685163243. The reversal of 685163234 is 432361586.

It is not an unprimeable number, because it can be changed into a prime (685163231) 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, 93977 + ... + 101004.

It is an arithmetic number, because the mean of its divisors is an integer number (73703196).

Almost surely, 2^685163234 is an apocalyptic number.

685163234 is a deficient number, since it is larger than the sum of its proper divisors (494087902).

685163234 is a wasteful number, since it uses less digits than its factorization.

685163234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195241.

The product of its digits is 103680, while the sum is 38.

The square root of 685163234 is about 26175.6228961223. The cubic root of 685163234 is about 881.5859974975.

The spelling of 685163234 in words is "six hundred eighty-five million, one hundred sixty-three thousand, two hundred thirty-four".