811379982 has 32 divisors (see below), whose sum is σ = 1857203712. Its totient is φ = 231495264.

The previous prime is 811379953. The next prime is 811379999. The reversal of 811379982 is 289973118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17248 + ... + 43820.

It is an arithmetic number, because the mean of its divisors is an integer number (58037616).

Almost surely, 2^811379982 is an apocalyptic number.

811379982 is an abundant number, since it is smaller than the sum of its proper divisors (1045823730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

811379982 is a wasteful number, since it uses less digits than its factorization.

811379982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27312.

The product of its digits is 217728, while the sum is 48.

The square root of 811379982 is about 28484.7324368687. The cubic root of 811379982 is about 932.6988248904.

It can be divided in two parts, 81137 and 9982, that added together give a palindrome (91119).

The spelling of 811379982 in words is "eight hundred eleven million, three hundred seventy-nine thousand, nine hundred eighty-two".