89856880 has 20 divisors (see below), whose sum is σ = 208917432. Its totient is φ = 35942720.

The previous prime is 89856863. The next prime is 89856887. The reversal of 89856880 is 8865898.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89856887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561526 + ... + 561685.

Almost surely, 2^89856880 is an apocalyptic number.

89856880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89856880 is an abundant number, since it is smaller than the sum of its proper divisors (119060552).

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

89856880 is a wasteful number, since it uses less digits than its factorization.

89856880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123224 (or 1123218 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 52.

The square root of 89856880 is about 9479.2868930105. The cubic root of 89856880 is about 447.9028009793.

The spelling of 89856880 in words is "eighty-nine million, eight hundred fifty-six thousand, eight hundred eighty".