89987633 has 8 divisors (see below), whose sum is σ = 92363040. Its totient is φ = 87642720.

The previous prime is 89987621. The next prime is 89987659. The reversal of 89987633 is 33678998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89987633 - 2⁴ = 89987617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89987603) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1583 + ... + 13508.

It is an arithmetic number, because the mean of its divisors is an integer number (11545380).

Almost surely, 2^89987633 is an apocalyptic number.

It is an amenable number.

89987633 is a deficient number, since it is larger than the sum of its proper divisors (2375407).

89987633 is a wasteful number, since it uses less digits than its factorization.

89987633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15247.

The product of its digits is 1959552, while the sum is 53.

The square root of 89987633 is about 9486.1811599821. The cubic root of 89987633 is about 448.1199472219.

The spelling of 89987633 in words is "eighty-nine million, nine hundred eighty-seven thousand, six hundred thirty-three".