89615651 has 4 divisors (see below), whose sum is σ = 89664552. Its totient is φ = 89566752.

The previous prime is 89615641. The next prime is 89615671. The reversal of 89615651 is 15651698.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15651698 = 2 ⋅7825849.

It is a cyclic number.

It is not a de Polignac number, because 89615651 - 2¹⁰ = 89614627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89615599 and 89615608.

It is not an unprimeable number, because it can be changed into a prime (89615611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21590 + ... + 25403.

It is an arithmetic number, because the mean of its divisors is an integer number (22416138).

Almost surely, 2^89615651 is an apocalyptic number.

89615651 is a deficient number, since it is larger than the sum of its proper divisors (48901).

89615651 is a wasteful number, since it uses less digits than its factorization.

89615651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48900.

The product of its digits is 64800, while the sum is 41.

The square root of 89615651 is about 9466.5543361880. The cubic root of 89615651 is about 447.5016297809.

The spelling of 89615651 in words is "eighty-nine million, six hundred fifteen thousand, six hundred fifty-one".