881661804 has 48 divisors (see below), whose sum is σ = 2096102400. Its totient is φ = 288377856.

The previous prime is 881661797. The next prime is 881661817. The reversal of 881661804 is 408166188.

881661804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 155532 + ... + 161100.

It is an arithmetic number, because the mean of its divisors is an integer number (43668800).

Almost surely, 2^881661804 is an apocalyptic number.

It is an amenable number.

881661804 is an abundant number, since it is smaller than the sum of its proper divisors (1214440596).

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

881661804 is a wasteful number, since it uses less digits than its factorization.

881661804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5822 (or 5820 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 881661804 is about 29692.7904380845. The cubic root of 881661804 is about 958.8868042788.

The spelling of 881661804 in words is "eight hundred eighty-one million, six hundred sixty-one thousand, eight hundred four".