89328913 has 4 divisors (see below), whose sum is σ = 90196288. Its totient is φ = 88461540.

The previous prime is 89328907. The next prime is 89328919. The reversal of 89328913 is 31982398.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (89328907) and next prime (89328919).

It is a cyclic number.

It is not a de Polignac number, because 89328913 - 2²¹ = 87231761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89328913.

It is not an unprimeable number, because it can be changed into a prime (89328919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433533 + ... + 433738.

It is an arithmetic number, because the mean of its divisors is an integer number (22549072).

Almost surely, 2^89328913 is an apocalyptic number.

It is an amenable number.

89328913 is a deficient number, since it is larger than the sum of its proper divisors (867375).

89328913 is a wasteful number, since it uses less digits than its factorization.

89328913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867374.

The product of its digits is 93312, while the sum is 43.

The square root of 89328913 is about 9451.3974099072. The cubic root of 89328913 is about 447.0238381620.

The spelling of 89328913 in words is "eighty-nine million, three hundred twenty-eight thousand, nine hundred thirteen".