864508982 has 4 divisors (see below), whose sum is σ = 1296763476. Its totient is φ = 432254490.

The previous prime is 864508979. The next prime is 864508991. The reversal of 864508982 is 289805468.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 864508982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216127244 + ... + 216127247.

It is an arithmetic number, because the mean of its divisors is an integer number (324190869).

Almost surely, 2^864508982 is an apocalyptic number.

864508982 is a deficient number, since it is larger than the sum of its proper divisors (432254494).

864508982 is a wasteful number, since it uses less digits than its factorization.

864508982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432254493.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The square root of 864508982 is about 29402.5335983143. The cubic root of 864508982 is about 952.6276219120.

The spelling of 864508982 in words is "eight hundred sixty-four million, five hundred eight thousand, nine hundred eighty-two".