811984488 has 96 divisors (see below), whose sum is σ = 2437666560. Its totient is φ = 224501760.

The previous prime is 811984487. The next prime is 811984489. The reversal of 811984488 is 884489118.

It is an interprime number because it is at equal distance from previous prime (811984487) and next prime (811984489).

It is a self number, because there is not a number n which added to its sum of digits gives 811984488.

It is not an unprimeable number, because it can be changed into a prime (811984487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25320 + ... + 47592.

It is an arithmetic number, because the mean of its divisors is an integer number (25392360).

Almost surely, 2^811984488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811984488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218833280).

811984488 is an abundant number, since it is smaller than the sum of its proper divisors (1625682072).

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

811984488 is a wasteful number, since it uses less digits than its factorization.

811984488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22327 (or 22316 counting only the distinct ones).

The product of its digits is 589824, while the sum is 51.

The square root of 811984488 is about 28495.3415140089. The cubic root of 811984488 is about 932.9303982937.

The spelling of 811984488 in words is "eight hundred eleven million, nine hundred eighty-four thousand, four hundred eighty-eight".