89868611 has 4 divisors (see below), whose sum is σ = 102706992. Its totient is φ = 77030232.

The previous prime is 89868587. The next prime is 89868617. The reversal of 89868611 is 11686898.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89868611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89868617) 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, 6419180 + ... + 6419193.

It is an arithmetic number, because the mean of its divisors is an integer number (25676748).

Almost surely, 2^89868611 is an apocalyptic number.

89868611 is a deficient number, since it is larger than the sum of its proper divisors (12838381).

89868611 is a wasteful number, since it uses less digits than its factorization.

89868611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838380.

The product of its digits is 165888, while the sum is 47.

The square root of 89868611 is about 9479.9056429903. The cubic root of 89868611 is about 447.9222916743.

The spelling of 89868611 in words is "eighty-nine million, eight hundred sixty-eight thousand, six hundred eleven".