231079887 has 12 divisors (see below), whose sum is σ = 335115144. Its totient is φ = 153438000.

The previous prime is 231079879. The next prime is 231079907. The reversal of 231079887 is 788970132.

It is not a de Polignac number, because 231079887 - 2³ = 231079879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231079817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48888 + ... + 53405.

It is an arithmetic number, because the mean of its divisors is an integer number (27926262).

Almost surely, 2^231079887 is an apocalyptic number.

231079887 is a deficient number, since it is larger than the sum of its proper divisors (104035257).

231079887 is a wasteful number, since it uses less digits than its factorization.

231079887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102550 (or 102547 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 231079887 is about 15201.3120157439. The cubic root of 231079887 is about 613.6499674231.

The spelling of 231079887 in words is "two hundred thirty-one million, seventy-nine thousand, eight hundred eighty-seven".