89912015 has 4 divisors (see below), whose sum is σ = 107894424. Its totient is φ = 71929608.

The previous prime is 89912003. The next prime is 89912027. The reversal of 89912015 is 51021998.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (89912003) and next prime (89912027).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89912015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8991197 + ... + 8991206.

It is an arithmetic number, because the mean of its divisors is an integer number (26973606).

Almost surely, 2^89912015 is an apocalyptic number.

89912015 is a deficient number, since it is larger than the sum of its proper divisors (17982409).

89912015 is a wasteful number, since it uses less digits than its factorization.

89912015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17982408.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 89912015 is about 9482.1946299367. The cubic root of 89912015 is about 447.9943913387.

The spelling of 89912015 in words is "eighty-nine million, nine hundred twelve thousand, fifteen".