89028688 has 30 divisors (see below), whose sum is σ = 200656986. Its totient is φ = 38154816.

The previous prime is 89028673. The next prime is 89028689. The reversal of 89028688 is 88682098.

It can be written as a sum of positive squares in only one way, i.e., 61905424 + 27123264 = 7868^2 + 5208^2 .

It is a super-2 number, since 2×89028688² = 15852214574002688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89028689) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55995 + ... + 57562.

Almost surely, 2^89028688 is an apocalyptic number.

It is an amenable number.

89028688 is an abundant number, since it is smaller than the sum of its proper divisors (111628298).

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

89028688 is a wasteful number, since it uses less digits than its factorization.

89028688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113579 (or 113566 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The square root of 89028688 is about 9435.5014705102. The cubic root of 89028688 is about 446.5224761681.

The spelling of 89028688 in words is "eighty-nine million, twenty-eight thousand, six hundred eighty-eight".