89711913 has 4 divisors (see below), whose sum is σ = 119615888. Its totient is φ = 59807940.

The previous prime is 89711887. The next prime is 89711927. The reversal of 89711913 is 31911798.

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 not a de Polignac number, because 89711913 - 2¹⁰ = 89710889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89712913) 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, 14951983 + ... + 14951988.

It is an arithmetic number, because the mean of its divisors is an integer number (29903972).

Almost surely, 2^89711913 is an apocalyptic number.

It is an amenable number.

89711913 is a deficient number, since it is larger than the sum of its proper divisors (29903975).

89711913 is a wasteful number, since it uses less digits than its factorization.

89711913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29903974.

The product of its digits is 13608, while the sum is 39.

The square root of 89711913 is about 9471.6372924643. The cubic root of 89711913 is about 447.6618026470.

The spelling of 89711913 in words is "eighty-nine million, seven hundred eleven thousand, nine hundred thirteen".