89665413 has 4 divisors (see below), whose sum is σ = 119553888. Its totient is φ = 59776940.

The previous prime is 89665399. The next prime is 89665441. The reversal of 89665413 is 31456698.

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 a cyclic number.

It is not a de Polignac number, because 89665413 - 2⁹ = 89664901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89615413) 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 3 ways as a sum of consecutive naturals, for example, 14944233 + ... + 14944238.

It is an arithmetic number, because the mean of its divisors is an integer number (29888472).

Almost surely, 2^89665413 is an apocalyptic number.

It is an amenable number.

89665413 is a deficient number, since it is larger than the sum of its proper divisors (29888475).

89665413 is a wasteful number, since it uses less digits than its factorization.

89665413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29888474.

The product of its digits is 155520, while the sum is 42.

The square root of 89665413 is about 9469.1822772613. The cubic root of 89665413 is about 447.5844443910.

The spelling of 89665413 in words is "eighty-nine million, six hundred sixty-five thousand, four hundred thirteen".