89216538 has 16 divisors (see below), whose sum is σ = 179616576. Its totient is φ = 29541600.

The previous prime is 89216531. The next prime is 89216539. The reversal of 89216538 is 83561298.

It is a self number, because there is not a number n which added to its sum of digits gives 89216538.

It is not an unprimeable number, because it can be changed into a prime (89216531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48331 + ... + 50142.

It is an arithmetic number, because the mean of its divisors is an integer number (11226036).

Almost surely, 2^89216538 is an apocalyptic number.

89216538 is an abundant number, since it is smaller than the sum of its proper divisors (90400038).

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

89216538 is a wasteful number, since it uses less digits than its factorization.

89216538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98629.

The product of its digits is 103680, while the sum is 42.

The square root of 89216538 is about 9445.4506509748. The cubic root of 89216538 is about 446.8363087958.

The spelling of 89216538 in words is "eighty-nine million, two hundred sixteen thousand, five hundred thirty-eight".