89776665 has 48 divisors (see below), whose sum is σ = 170614080. Its totient is φ = 43309440.

The previous prime is 89776657. The next prime is 89776697. The reversal of 89776665 is 56667798.

It is a happy number.

It is not a de Polignac number, because 89776665 - 2³ = 89776657 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 144726 + ... + 145344.

It is an arithmetic number, because the mean of its divisors is an integer number (3554460).

Almost surely, 2^89776665 is an apocalyptic number.

It is an amenable number.

89776665 is a deficient number, since it is larger than the sum of its proper divisors (80837415).

89776665 is a wasteful number, since it uses less digits than its factorization.

89776665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 931 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 89776665 is about 9475.0548811075. The cubic root of 89776665 is about 447.7694807499.

The spelling of 89776665 in words is "eighty-nine million, seven hundred seventy-six thousand, six hundred sixty-five".