2312832987 has 16 divisors (see below), whose sum is σ = 3427570560. Its totient is φ = 1541370600.

The previous prime is 2312832979. The next prime is 2312832997. The reversal of 2312832987 is 7892382132.

2312832987 is a `hidden beast` number, since 2 + 312 + 8 + 329 + 8 + 7 = 666.

It is not a de Polignac number, because 2312832987 - 2³ = 2312832979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2312832937) 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, 78312 + ... + 103722.

It is an arithmetic number, because the mean of its divisors is an integer number (214223160).

Almost surely, 2^2312832987 is an apocalyptic number.

2312832987 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2312832987 is a deficient number, since it is larger than the sum of its proper divisors (1114737573).

2312832987 is a wasteful number, since it uses less digits than its factorization.

2312832987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28791 (or 28785 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 2312832987 is about 48091.9222635153. The cubic root of 2312832987 is about 1322.4565875189.

It can be divided in two parts, 231283 and 2987, that added together give a triangular number (234270 = T₆₈₄).

The spelling of 2312832987 in words is "two billion, three hundred twelve million, eight hundred thirty-two thousand, nine hundred eighty-seven".