869974984 has 16 divisors (see below), whose sum is σ = 1633287600. Its totient is φ = 434431632.

The previous prime is 869974981. The next prime is 869974991. The reversal of 869974984 is 489479968.

It is not an unprimeable number, because it can be changed into a prime (869974981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62794 + ... + 75385.

It is an arithmetic number, because the mean of its divisors is an integer number (102080475).

Almost surely, 2^869974984 is an apocalyptic number.

It is an amenable number.

869974984 is a deficient number, since it is larger than the sum of its proper divisors (763312616).

869974984 is a wasteful number, since it uses less digits than its factorization.

869974984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138972 (or 138968 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 64.

The square root of 869974984 is about 29495.3383435417. The cubic root of 869974984 is about 954.6311209322.

The spelling of 869974984 in words is "eight hundred sixty-nine million, nine hundred seventy-four thousand, nine hundred eighty-four".