881599964 has 72 divisors (see below), whose sum is σ = 1831237632. Its totient is φ = 370228320.

The previous prime is 881599951. The next prime is 881599967. The reversal of 881599964 is 469995188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881599967) 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, 2663279 + ... + 2663609.

It is an arithmetic number, because the mean of its divisors is an integer number (25433856).

Almost surely, 2^881599964 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 881599964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (915618816).

881599964 is an abundant number, since it is smaller than the sum of its proper divisors (949637668).

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

881599964 is a wasteful number, since it uses less digits than its factorization.

881599964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 574 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 59.

The square root of 881599964 is about 29691.7490896040. The cubic root of 881599964 is about 958.8643848937.

The spelling of 881599964 in words is "eight hundred eighty-one million, five hundred ninety-nine thousand, nine hundred sixty-four".