89665915 has 8 divisors (see below), whose sum is σ = 107650800. Its totient is φ = 71698272.

The previous prime is 89665909. The next prime is 89665931. The reversal of 89665915 is 51956698.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89665915 - 2⁷ = 89665787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15036 + ... + 20134.

It is an arithmetic number, because the mean of its divisors is an integer number (13456350).

Almost surely, 2^89665915 is an apocalyptic number.

89665915 is a deficient number, since it is larger than the sum of its proper divisors (17984885).

89665915 is a wasteful number, since it uses less digits than its factorization.

89665915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8621.

The product of its digits is 583200, while the sum is 49.

The square root of 89665915 is about 9469.2087842649. The cubic root of 89665915 is about 447.5852796702.

The spelling of 89665915 in words is "eighty-nine million, six hundred sixty-five thousand, nine hundred fifteen".