7938625 has 16 divisors (see below), whose sum is σ = 10155600. Its totient is φ = 6192000.

The previous prime is 7938607. The next prime is 7938641. The reversal of 7938625 is 5268397.

It can be written as a sum of positive squares in 8 ways, for example, as 5400976 + 2537649 = 2324^2 + 1593^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7938625 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4351 + ... + 5899.

It is an arithmetic number, because the mean of its divisors is an integer number (634725).

Almost surely, 2^7938625 is an apocalyptic number.

It is an amenable number.

7938625 is a deficient number, since it is larger than the sum of its proper divisors (2216975).

7938625 is a wasteful number, since it uses less digits than its factorization.

7938625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605 (or 1595 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 7938625 is about 2817.5565655369. The cubic root of 7938625 is about 199.4872281152.

The spelling of 7938625 in words is "seven million, nine hundred thirty-eight thousand, six hundred twenty-five".