89249665 has 4 divisors (see below), whose sum is σ = 107099604. Its totient is φ = 71399728.

The previous prime is 89249653. The next prime is 89249681. The reversal of 89249665 is 56694298.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68674369 + 20575296 = 8287^2 + 4536^2 .

It is a cyclic number.

It is not a de Polignac number, because 89249665 - 2¹³ = 89241473 is a prime.

It is a super-2 number, since 2×89249665² = 15931005405224450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 8924962 + ... + 8924971.

It is an arithmetic number, because the mean of its divisors is an integer number (26774901).

Almost surely, 2^89249665 is an apocalyptic number.

It is an amenable number.

89249665 is a deficient number, since it is larger than the sum of its proper divisors (17849939).

89249665 is a wasteful number, since it uses less digits than its factorization.

89249665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17849938.

The product of its digits is 933120, while the sum is 49.

The square root of 89249665 is about 9447.2040837488. The cubic root of 89249665 is about 446.8916068942.

The spelling of 89249665 in words is "eighty-nine million, two hundred forty-nine thousand, six hundred sixty-five".