89439552 has 140 divisors (see below), whose sum is σ = 269967456. Its totient is φ = 29393280.

The previous prime is 89439547. The next prime is 89439563. The reversal of 89439552 is 25593498.

89439552 is a `hidden beast` number, since 8 + 94 + 3 + 9 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 89439498 and 89439507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1259677 + ... + 1259747.

Almost surely, 2^89439552 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 89439552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134983728).

89439552 is an abundant number, since it is smaller than the sum of its proper divisors (180527904).

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

89439552 is an frugal number, since it uses more digits than its factorization.

89439552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 76 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 89439552 is about 9457.2486485235. The cubic root of 89439552 is about 447.2083169377.

The spelling of 89439552 in words is "eighty-nine million, four hundred thirty-nine thousand, five hundred fifty-two".