7915222 has 16 divisors (see below), whose sum is σ = 13761792. Its totient is φ = 3344040.

The previous prime is 7915213. The next prime is 7915273. The reversal of 7915222 is 2225197.

It is a congruent number.

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, 2988 + ... + 4975.

It is an arithmetic number, because the mean of its divisors is an integer number (860112).

Almost surely, 2^7915222 is an apocalyptic number.

7915222 is a deficient number, since it is larger than the sum of its proper divisors (5846570).

7915222 is a wasteful number, since it uses less digits than its factorization.

7915222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8043.

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

The square root of 7915222 is about 2813.4004336390. The cubic root of 7915222 is about 199.2910062761.

The spelling of 7915222 in words is "seven million, nine hundred fifteen thousand, two hundred twenty-two".