231976 has 16 divisors (see below), whose sum is σ = 440640. Its totient is φ = 114480.

The previous prime is 231967. The next prime is 232003. The reversal of 231976 is 679132.

231976 is nontrivially palindromic in base 3.

231976 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721 + ... + 991.

It is an arithmetic number, because the mean of its divisors is an integer number (27540).

2²³¹⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

231976 is a deficient number, since it is larger than the sum of its proper divisors (208664).

231976 is a wasteful number, since it uses less digits than its factorization.

231976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 380 counting only the distinct ones).

The product of its digits is 2268, while the sum is 28.

The square root of 231976 is about 481.6388688634. The cubic root of 231976 is about 61.4442176015. Note that the first 3 decimals are identical.

It can be divided in two parts, 231 and 976, that multiplied together give a triangular number (225456 = T₆₇₁).

The spelling of 231976 in words is "two hundred thirty-one thousand, nine hundred seventy-six".