89479665 has 48 divisors (see below), whose sum is σ = 170389440. Its totient is φ = 43079040.

The previous prime is 89479661. The next prime is 89479669. The reversal of 89479665 is 56697498.

It is an interprime number because it is at equal distance from previous prime (89479661) and next prime (89479669).

It is not a de Polignac number, because 89479665 - 2² = 89479661 is a prime.

It is a super-2 number, since 2×89479665² = 16013220897024450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89479661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80131 + ... + 81239.

It is an arithmetic number, because the mean of its divisors is an integer number (3549780).

Almost surely, 2^89479665 is an apocalyptic number.

It is an amenable number.

89479665 is a deficient number, since it is larger than the sum of its proper divisors (80909775).

89479665 is a wasteful number, since it uses less digits than its factorization.

89479665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294 (or 1291 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 89479665 is about 9459.3691650131. The cubic root of 89479665 is about 447.2751635235.

The spelling of 89479665 in words is "eighty-nine million, four hundred seventy-nine thousand, six hundred sixty-five".