89171256 has 64 divisors (see below), whose sum is σ = 248486400. Its totient is φ = 26500608.

The previous prime is 89171231. The next prime is 89171261. The reversal of 89171256 is 65217198.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2001 + ... + 13503.

It is an arithmetic number, because the mean of its divisors is an integer number (3882600).

Almost surely, 2^89171256 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 89171256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124243200).

89171256 is an abundant number, since it is smaller than the sum of its proper divisors (159315144).

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

89171256 is a wasteful number, since it uses less digits than its factorization.

89171256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11548 (or 11544 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The square root of 89171256 is about 9443.0533197690. The cubic root of 89171256 is about 446.7606985022.

The spelling of 89171256 in words is "eighty-nine million, one hundred seventy-one thousand, two hundred fifty-six".