89241921 has 12 divisors (see below), whose sum is σ = 129373972. Its totient is φ = 59278176.

The previous prime is 89241881. The next prime is 89241931. The reversal of 89241921 is 12914298.

It can be written as a sum of positive squares in 2 ways, for example, as 10653696 + 78588225 = 3264^2 + 8865^2 .

It is not a de Polignac number, because 89241921 - 2⁷ = 89241793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89241931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15406 + ... + 20391.

Almost surely, 2^89241921 is an apocalyptic number.

It is an amenable number.

89241921 is a deficient number, since it is larger than the sum of its proper divisors (40132051).

89241921 is a wasteful number, since it uses less digits than its factorization.

89241921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36080 (or 36077 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 89241921 is about 9446.7942181462. The cubic root of 89241921 is about 446.8786812483.

The spelling of 89241921 in words is "eighty-nine million, two hundred forty-one thousand, nine hundred twenty-one".