7972122 has 32 divisors (see below), whose sum is σ = 17055360. Its totient is φ = 2478080.

The previous prime is 7972121. The next prime is 7972141. The reversal of 7972122 is 2212797.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7972122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4954 + ... + 6362.

It is an arithmetic number, because the mean of its divisors is an integer number (532980).

Almost surely, 2^7972122 is an apocalyptic number.

7972122 is an abundant number, since it is smaller than the sum of its proper divisors (9083238).

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

7972122 is a wasteful number, since it uses less digits than its factorization.

7972122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478.

The product of its digits is 3528, while the sum is 30.

The square root of 7972122 is about 2823.4946431683. The cubic root of 7972122 is about 199.7674129545.

The spelling of 7972122 in words is "seven million, nine hundred seventy-two thousand, one hundred twenty-two".