7978252 has 24 divisors (see below), whose sum is σ = 14842800. Its totient is φ = 3741696.

The previous prime is 7978247. The next prime is 7978279. The reversal of 7978252 is 2528797.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8124 + ... + 9052.

It is an arithmetic number, because the mean of its divisors is an integer number (618450).

Almost surely, 2^7978252 is an apocalyptic number.

It is an amenable number.

7978252 is a deficient number, since it is larger than the sum of its proper divisors (6864548).

7978252 is a wasteful number, since it uses less digits than its factorization.

7978252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065 (or 1063 counting only the distinct ones).

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

The square root of 7978252 is about 2824.5799687741. The cubic root of 7978252 is about 199.8186021906.

The spelling of 7978252 in words is "seven million, nine hundred seventy-eight thousand, two hundred fifty-two".