89574921 has 24 divisors (see below), whose sum is σ = 139332960. Its totient is φ = 55245696.

The previous prime is 89574917. The next prime is 89574923. The reversal of 89574921 is 12947598.

It is not a de Polignac number, because 89574921 - 2² = 89574917 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89574923) 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 23 ways as a sum of consecutive naturals, for example, 4066 + ... + 13988.

It is an arithmetic number, because the mean of its divisors is an integer number (5805540).

Almost surely, 2^89574921 is an apocalyptic number.

It is an amenable number.

89574921 is a deficient number, since it is larger than the sum of its proper divisors (49758039).

89574921 is a wasteful number, since it uses less digits than its factorization.

89574921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005 (or 10002 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 89574921 is about 9464.4028337767. The cubic root of 89574921 is about 447.4338235320.

The spelling of 89574921 in words is "eighty-nine million, five hundred seventy-four thousand, nine hundred twenty-one".