89422728 has 32 divisors (see below), whose sum is σ = 225614400. Its totient is φ = 29533248.

The previous prime is 89422709. The next prime is 89422733. The reversal of 89422728 is 82722498.

It is a self number, because there is not a number n which added to its sum of digits gives 89422728.

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 in 7 ways as a sum of consecutive naturals, for example, 14476 + ... + 19707.

It is an arithmetic number, because the mean of its divisors is an integer number (7050450).

Almost surely, 2^89422728 is an apocalyptic number.

It is an amenable number.

89422728 is an abundant number, since it is smaller than the sum of its proper divisors (136191672).

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

89422728 is a wasteful number, since it uses less digits than its factorization.

89422728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34301 (or 34297 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 89422728 is about 9456.3591302361. The cubic root of 89422728 is about 447.1802745174.

The spelling of 89422728 in words is "eighty-nine million, four hundred twenty-two thousand, seven hundred twenty-eight".