7940925 has 36 divisors (see below), whose sum is σ = 14725620. Its totient is φ = 4085760.

The previous prime is 7940893. The next prime is 7940927. The reversal of 7940925 is 5290497.

It can be written as a sum of positive squares in 6 ways, for example, as 356409 + 7584516 = 597^2 + 2754^2 .

It is not a de Polignac number, because 7940925 - 2⁵ = 7940893 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7940925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940927) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5917 + ... + 7133.

It is an arithmetic number, because the mean of its divisors is an integer number (409045).

Almost surely, 2^7940925 is an apocalyptic number.

7940925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7940925 is a deficient number, since it is larger than the sum of its proper divisors (6784695).

7940925 is a wasteful number, since it uses less digits than its factorization.

7940925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 7940925 is about 2817.9646910492. The cubic root of 7940925 is about 199.5064915822.

The spelling of 7940925 in words is "seven million, nine hundred forty thousand, nine hundred twenty-five".