7879225 has 24 divisors (see below), whose sum is σ = 10392192. Its totient is φ = 5913600.

The previous prime is 7879219. The next prime is 7879237. The reversal of 7879225 is 5229787.

It is not a de Polignac number, because 7879225 - 2⁹ = 7878713 is a prime.

It is an Ulam number.

It is a Duffinian number.

7879225 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40729 + ... + 40921.

It is an arithmetic number, because the mean of its divisors is an integer number (433008).

Almost surely, 2^7879225 is an apocalyptic number.

It is an amenable number.

7879225 is a deficient number, since it is larger than the sum of its proper divisors (2512967).

7879225 is a wasteful number, since it uses less digits than its factorization.

7879225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 292 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 7879225 is about 2806.9957249700. The cubic root of 7879225 is about 198.9884339633.

The spelling of 7879225 in words is "seven million, eight hundred seventy-nine thousand, two hundred twenty-five".