89163828 has 60 divisors (see below), whose sum is σ = 251033860. Its totient is φ = 27433728.

The previous prime is 89163803. The next prime is 89163871. The reversal of 89163828 is 82836198.

89163828 is a `hidden beast` number, since 8 + 9 + 1 + 638 + 2 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54730404 + 34433424 = 7398^2 + 5868^2 .

It is a super-2 number, since 2×89163828² = 15900376447227168, which contains 22 as substring.

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, 6373 + ... + 14796.

Almost surely, 2^89163828 is an apocalyptic number.

It is an amenable number.

89163828 is an abundant number, since it is smaller than the sum of its proper divisors (161870032).

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

89163828 is a wasteful number, since it uses less digits than its factorization.

89163828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21198 (or 21187 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 89163828 is about 9442.6600065871. The cubic root of 89163828 is about 446.7482930449.

The spelling of 89163828 in words is "eighty-nine million, one hundred sixty-three thousand, eight hundred twenty-eight".