8190625 has 12 divisors (see below), whose sum is σ = 10241532. Its totient is φ = 6550000.

The previous prime is 8190607. The next prime is 8190647. The reversal of 8190625 is 5260918.

It can be written as a sum of positive squares in 6 ways, for example, as 5527201 + 2663424 = 2351^2 + 1632^2 .

It is not a de Polignac number, because 8190625 - 2⁵ = 8190593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1815 + ... + 4435.

It is an arithmetic number, because the mean of its divisors is an integer number (853461).

Almost surely, 2^8190625 is an apocalyptic number.

It is an amenable number.

8190625 is a deficient number, since it is larger than the sum of its proper divisors (2050907).

8190625 is an frugal number, since it uses more digits than its factorization.

8190625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646 (or 2626 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 8190625 is about 2861.9267985048. The cubic root of 8190625 is about 201.5760887620.

The spelling of 8190625 in words is "eight million, one hundred ninety thousand, six hundred twenty-five".