8990625 has 48 divisors (see below), whose sum is σ = 17248896. Its totient is φ = 4080000.

The previous prime is 8990623. The next prime is 8990669. The reversal of 8990625 is 5260998.

It is a happy number.

It is not a de Polignac number, because 8990625 - 2¹ = 8990623 is a prime.

It is an Ulam number.

8990625 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8990623) 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 47 ways as a sum of consecutive naturals, for example, 65557 + ... + 65693.

It is an arithmetic number, because the mean of its divisors is an integer number (359352).

Almost surely, 2^8990625 is an apocalyptic number.

It is an amenable number.

8990625 is a deficient number, since it is larger than the sum of its proper divisors (8258271).

8990625 is an equidigital number, since it uses as much as digits as its factorization.

8990625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 8990625 is about 2998.4370928869. The cubic root of 8990625 is about 207.9361320798.

The spelling of 8990625 in words is "eight million, nine hundred ninety thousand, six hundred twenty-five".