89665625 has 24 divisors (see below), whose sum is σ = 128116800. Its totient is φ = 61470000.

The previous prime is 89665607. The next prime is 89665649. The reversal of 89665625 is 52656698.

It is not a de Polignac number, because 89665625 - 2¹² = 89661529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89665625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19826 + ... + 23924.

It is an arithmetic number, because the mean of its divisors is an integer number (5338200).

Almost surely, 2^89665625 is an apocalyptic number.

It is an amenable number.

89665625 is a deficient number, since it is larger than the sum of its proper divisors (38451175).

89665625 is an frugal number, since it uses more digits than its factorization.

89665625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131 (or 4111 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 89665625 is about 9469.1934714631. The cubic root of 89665625 is about 447.5847971388.

The spelling of 89665625 in words is "eighty-nine million, six hundred sixty-five thousand, six hundred twenty-five".