869232987 has 12 divisors (see below), whose sum is σ = 1434924400. Its totient is φ = 496704528.

The previous prime is 869232983. The next prime is 869232989. The reversal of 869232987 is 789232968.

It is a happy number.

It is not a de Polignac number, because 869232987 - 2² = 869232983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (869232983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6898612 + ... + 6898737.

Almost surely, 2^869232987 is an apocalyptic number.

869232987 is a deficient number, since it is larger than the sum of its proper divisors (565691413).

869232987 is a wasteful number, since it uses less digits than its factorization.

869232987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13797362 (or 13797359 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 869232987 is about 29482.7574524501. The cubic root of 869232987 is about 954.3596438153.

The spelling of 869232987 in words is "eight hundred sixty-nine million, two hundred thirty-two thousand, nine hundred eighty-seven".