89278632 has 64 divisors (see below), whose sum is σ = 254721600. Its totient is φ = 28952640.

The previous prime is 89278619. The next prime is 89278661. The reversal of 89278632 is 23687298.

89278632 is a `hidden beast` number, since 8 + 9 + 2 + 7 + 8 + 632 = 666.

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, 2407 + ... + 13577.

It is an arithmetic number, because the mean of its divisors is an integer number (3980025).

Almost surely, 2^89278632 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 89278632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127360800).

89278632 is an abundant number, since it is smaller than the sum of its proper divisors (165442968).

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

89278632 is a wasteful number, since it uses less digits than its factorization.

89278632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11223 (or 11213 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 89278632 is about 9448.7370584645. The cubic root of 89278632 is about 446.9399495927.

It can be divided in two parts, 892 and 78632, that added together give a square (79524 = 282²).

The spelling of 89278632 in words is "eighty-nine million, two hundred seventy-eight thousand, six hundred thirty-two".