231904935 has 12 divisors (see below), whose sum is σ = 401968632. Its totient is φ = 123682608.

The previous prime is 231904919. The next prime is 231904949. The reversal of 231904935 is 539409132.

It is a happy number.

It is not a de Polignac number, because 231904935 - 2⁴ = 231904919 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 231904935.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2576677 + ... + 2576766.

It is an arithmetic number, because the mean of its divisors is an integer number (33497386).

Almost surely, 2^231904935 is an apocalyptic number.

231904935 is a deficient number, since it is larger than the sum of its proper divisors (170063697).

231904935 is a wasteful number, since it uses less digits than its factorization.

231904935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153454 (or 5153451 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 231904935 is about 15228.4252304695. The cubic root of 231904935 is about 614.3794255678.

The spelling of 231904935 in words is "two hundred thirty-one million, nine hundred four thousand, nine hundred thirty-five".