89672645 has 16 divisors (see below), whose sum is σ = 112088448. Its totient is φ = 68806080.

The previous prime is 89672641. The next prime is 89672651. The reversal of 89672645 is 54627698.

It is not a de Polignac number, because 89672645 - 2² = 89672641 is a prime.

It is a super-2 number, since 2×89672645² = 16082366522592050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89672645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89672641) 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 15 ways as a sum of consecutive naturals, for example, 9722 + ... + 16548.

It is an arithmetic number, because the mean of its divisors is an integer number (7005528).

Almost surely, 2^89672645 is an apocalyptic number.

It is an amenable number.

89672645 is a deficient number, since it is larger than the sum of its proper divisors (22415803).

89672645 is a wasteful number, since it uses less digits than its factorization.

89672645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6940.

The product of its digits is 725760, while the sum is 47.

The square root of 89672645 is about 9469.5641399169. The cubic root of 89672645 is about 447.5964774354.

The spelling of 89672645 in words is "eighty-nine million, six hundred seventy-two thousand, six hundred forty-five".