231971704 has 16 divisors (see below), whose sum is σ = 436488120. Its totient is φ = 115574880.

The previous prime is 231971699. The next prime is 231971731. The reversal of 231971704 is 407179132.

It is a self number, because there is not a number n which added to its sum of digits gives 231971704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48967 + ... + 53494.

Almost surely, 2^231971704 is an apocalyptic number.

It is an amenable number.

231971704 is a deficient number, since it is larger than the sum of its proper divisors (204516416).

231971704 is a wasteful number, since it uses less digits than its factorization.

231971704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102750 (or 102746 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 231971704 is about 15230.6173216978. The cubic root of 231971704 is about 614.4383830074.

The spelling of 231971704 in words is "two hundred thirty-one million, nine hundred seventy-one thousand, seven hundred four".