7899125 has 16 divisors (see below), whose sum is σ = 10618608. Its totient is φ = 5832000.

The previous prime is 7899113. The next prime is 7899127. The reversal of 7899125 is 5219987.

It can be written as a sum of positive squares in 8 ways, for example, as 2172676 + 5726449 = 1474^2 + 2393^2 .

It is not a de Polignac number, because 7899125 - 2¹² = 7895029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7899127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806 + ... + 4055.

It is an arithmetic number, because the mean of its divisors is an integer number (663663).

Almost surely, 2^7899125 is an apocalyptic number.

It is an amenable number.

7899125 is a deficient number, since it is larger than the sum of its proper divisors (2719483).

7899125 is a wasteful number, since it uses less digits than its factorization.

7899125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4889 (or 4879 counting only the distinct ones).

The product of its digits is 45360, while the sum is 41.

The square root of 7899125 is about 2810.5382046861. The cubic root of 7899125 is about 199.1558167869.

The spelling of 7899125 in words is "seven million, eight hundred ninety-nine thousand, one hundred twenty-five".