7904125 has 16 divisors (see below), whose sum is σ = 10136880. Its totient is φ = 6148800.

The previous prime is 7904123. The next prime is 7904161. The reversal of 7904125 is 5214097.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2134521 + 5769604 = 1461^2 + 2402^2 .

It is not a de Polignac number, because 7904125 - 2¹ = 7904123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7904093 and 7904102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7904123) 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, 3771 + ... + 5479.

It is an arithmetic number, because the mean of its divisors is an integer number (633555).

Almost surely, 2^7904125 is an apocalyptic number.

It is an amenable number.

7904125 is a deficient number, since it is larger than the sum of its proper divisors (2232755).

7904125 is a wasteful number, since it uses less digits than its factorization.

7904125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761 (or 1751 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 7904125 is about 2811.4275733157. The cubic root of 7904125 is about 199.1978285732.

Subtracting from 7904125 its sum of digits (28), we obtain a palindrome (7904097).

The spelling of 7904125 in words is "seven million, nine hundred four thousand, one hundred twenty-five".