89288840 has 16 divisors (see below), whose sum is σ = 200899980. Its totient is φ = 35715520.

The previous prime is 89288833. The next prime is 89288851. The reversal of 89288840 is 4888298.

It can be written as a sum of positive squares in 2 ways, for example, as 85119076 + 4169764 = 9226^2 + 2042^2 .

It is a super-3 number, since 3×89288840³ (a number of 25 digits) contains 333 as substring.

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, 1116071 + ... + 1116150.

Almost surely, 2^89288840 is an apocalyptic number.

It is an amenable number.

89288840 is an abundant number, since it is smaller than the sum of its proper divisors (111611140).

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

89288840 is a wasteful number, since it uses less digits than its factorization.

89288840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232232 (or 2232228 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 47.

The square root of 89288840 is about 9449.2772210365. The cubic root of 89288840 is about 446.9569831166.

The spelling of 89288840 in words is "eighty-nine million, two hundred eighty-eight thousand, eight hundred forty".