7870225 has 12 divisors (see below), whose sum is σ = 10646640. Its totient is φ = 5723600.

The previous prime is 7870211. The next prime is 7870229. The reversal of 7870225 is 5220787.

It is not a de Polignac number, because 7870225 - 2⁵ = 7870193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7870229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14035 + ... + 14584.

It is an arithmetic number, because the mean of its divisors is an integer number (887220).

Almost surely, 2^7870225 is an apocalyptic number.

It is an amenable number.

7870225 is a deficient number, since it is larger than the sum of its proper divisors (2776415).

7870225 is a wasteful number, since it uses less digits than its factorization.

7870225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28640 (or 28635 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 7870225 is about 2805.3921294536. The cubic root of 7870225 is about 198.9126406283.

The spelling of 7870225 in words is "seven million, eight hundred seventy thousand, two hundred twenty-five".