7974225 has 72 divisors (see below), whose sum is σ = 16790592. Its totient is φ = 3542400.

The previous prime is 7974209. The next prime is 7974227. The reversal of 7974225 is 5224797.

It is not a de Polignac number, because 7974225 - 2⁴ = 7974209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7974225.

It is not an unprimeable number, because it can be changed into a prime (7974227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 96034 + ... + 96116.

Almost surely, 2^7974225 is an apocalyptic number.

7974225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7974225 is an abundant number, since it is smaller than the sum of its proper divisors (8816367).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7974225 is a wasteful number, since it uses less digits than its factorization.

7974225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 159 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 7974225 is about 2823.8670294474. The cubic root of 7974225 is about 199.7849772422.

The spelling of 7974225 in words is "seven million, nine hundred seventy-four thousand, two hundred twenty-five".