89987284 has 6 divisors (see below), whose sum is σ = 157477754. Its totient is φ = 44993640.

The previous prime is 89987267. The next prime is 89987323. The reversal of 89987284 is 48278998.

It can be written as a sum of positive squares in only one way, i.e., 54346384 + 35640900 = 7372^2 + 5970^2 .

It is a super-2 number, since 2×89987284² = 16195422563393312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11248407 + ... + 11248414.

Almost surely, 2^89987284 is an apocalyptic number.

It is an amenable number.

89987284 is a deficient number, since it is larger than the sum of its proper divisors (67490470).

89987284 is a wasteful number, since it uses less digits than its factorization.

89987284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22496825 (or 22496823 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The square root of 89987284 is about 9486.1627647853. The cubic root of 89987284 is about 448.1193679051.

The spelling of 89987284 in words is "eighty-nine million, nine hundred eighty-seven thousand, two hundred eighty-four".