7887925 has 6 divisors (see below), whose sum is σ = 9781058. Its totient is φ = 6310320.

The previous prime is 7887923. The next prime is 7887941. The reversal of 7887925 is 5297887.

It can be written as a sum of positive squares in 3 ways, for example, as 237169 + 7650756 = 487^2 + 2766^2 .

It is not a de Polignac number, because 7887925 - 2¹ = 7887923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7887923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157734 + ... + 157783.

Almost surely, 2^7887925 is an apocalyptic number.

It is an amenable number.

7887925 is a deficient number, since it is larger than the sum of its proper divisors (1893133).

7887925 is a wasteful number, since it uses less digits than its factorization.

7887925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315527 (or 315522 counting only the distinct ones).

The product of its digits is 282240, while the sum is 46.

The square root of 7887925 is about 2808.5449969691. The cubic root of 7887925 is about 199.0616460109.

The spelling of 7887925 in words is "seven million, eight hundred eighty-seven thousand, nine hundred twenty-five".