89400625 has 20 divisors (see below), whose sum is σ = 112317172. Its totient is φ = 71136000.

The previous prime is 89400617. The next prime is 89400629. The reversal of 89400625 is 52600498.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 78694641 + 10705984 = 8871^2 + 3272^2 .

It is not a de Polignac number, because 89400625 - 2³ = 89400617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89400629) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 195397 + ... + 195853.

Almost surely, 2^89400625 is an apocalyptic number.

It is an amenable number.

89400625 is a deficient number, since it is larger than the sum of its proper divisors (22916547).

89400625 is an equidigital number, since it uses as much as digits as its factorization.

89400625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 89400625 is about 9455.1903735462. The cubic root of 89400625 is about 447.1434276579.

The spelling of 89400625 in words is "eighty-nine million, four hundred thousand, six hundred twenty-five".