89861472 has 72 divisors (see below), whose sum is σ = 259413336. Its totient is φ = 29500416.

The previous prime is 89861449. The next prime is 89861503. The reversal of 89861472 is 27416898.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16968 + ... + 21624.

It is an arithmetic number, because the mean of its divisors is an integer number (3602963).

Almost surely, 2^89861472 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 89861472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129706668).

89861472 is an abundant number, since it is smaller than the sum of its proper divisors (169551864).

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

89861472 is a wasteful number, since it uses less digits than its factorization.

89861472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740 (or 4729 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 89861472 is about 9479.5291022287. The cubic root of 89861472 is about 447.9104306479.

The spelling of 89861472 in words is "eighty-nine million, eight hundred sixty-one thousand, four hundred seventy-two".