231906970 has 32 divisors (see below), whose sum is σ = 453588480. Its totient is φ = 85043520.

The previous prime is 231906937. The next prime is 231906973. The reversal of 231906970 is 79609132.

It is not an unprimeable number, because it can be changed into a prime (231906973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13797 + ... + 25576.

It is an arithmetic number, because the mean of its divisors is an integer number (14174640).

Almost surely, 2^231906970 is an apocalyptic number.

231906970 is a deficient number, since it is larger than the sum of its proper divisors (221681510).

231906970 is a wasteful number, since it uses less digits than its factorization.

231906970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39430.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 231906970 is about 15228.4920461614. The cubic root of 231906970 is about 614.3812226526.

The spelling of 231906970 in words is "two hundred thirty-one million, nine hundred six thousand, nine hundred seventy".