7987625 has 8 divisors (see below), whose sum is σ = 9968712. Its totient is φ = 6390000.

The previous prime is 7987613. The next prime is 7987627. The reversal of 7987625 is 5267897.

It can be written as a sum of positive squares in 4 ways, for example, as 29584 + 7958041 = 172^2 + 2821^2 .

It is not a de Polignac number, because 7987625 - 2⁶ = 7987561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7987627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31826 + ... + 32075.

It is an arithmetic number, because the mean of its divisors is an integer number (1246089).

Almost surely, 2^7987625 is an apocalyptic number.

It is an amenable number.

7987625 is a deficient number, since it is larger than the sum of its proper divisors (1981087).

7987625 is an equidigital number, since it uses as much as digits as its factorization.

7987625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63916 (or 63906 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 7987625 is about 2826.2386664965. The cubic root of 7987625 is about 199.8968217804.

The spelling of 7987625 in words is "seven million, nine hundred eighty-seven thousand, six hundred twenty-five".