89287040 has 32 divisors (see below), whose sum is σ = 213453360. Its totient is φ = 35714560.

The previous prime is 89287039. The next prime is 89287057. The reversal of 89287040 is 4078298.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 89286985 and 89287003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69116 + ... + 70395.

Almost surely, 2^89287040 is an apocalyptic number.

89287040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89287040 is an abundant number, since it is smaller than the sum of its proper divisors (124166320).

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

89287040 is a wasteful number, since it uses less digits than its factorization.

89287040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139530 (or 139518 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 89287040 is about 9449.1819751765. The cubic root of 89287040 is about 446.9539796506.

The spelling of 89287040 in words is "eighty-nine million, two hundred eighty-seven thousand, forty".