685033923 has 32 divisors (see below), whose sum is σ = 1103872000. Its totient is φ = 369134496.

The previous prime is 685033901. The next prime is 685033927. The reversal of 685033923 is 329330586.

It is not a de Polignac number, because 685033923 - 2⁸ = 685033667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (685033927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85128 + ... + 92826.

It is an arithmetic number, because the mean of its divisors is an integer number (34496000).

Almost surely, 2^685033923 is an apocalyptic number.

685033923 is a deficient number, since it is larger than the sum of its proper divisors (418838077).

685033923 is a wasteful number, since it uses less digits than its factorization.

685033923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7951.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 685033923 is about 26173.1527141841. The cubic root of 685033923 is about 881.5305333717.

The spelling of 685033923 in words is "six hundred eighty-five million, thirty-three thousand, nine hundred twenty-three".