7172922 has 16 divisors (see below), whose sum is σ = 14374080. Its totient is φ = 2386272.

The previous prime is 7172911. The next prime is 7172923. The reversal of 7172922 is 2292717.

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 7172922.

It is not an unprimeable number, because it can be changed into a prime (7172923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3654 + ... + 5262.

It is an arithmetic number, because the mean of its divisors is an integer number (898380).

Almost surely, 2^7172922 is an apocalyptic number.

7172922 is an abundant number, since it is smaller than the sum of its proper divisors (7201158).

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

7172922 is a wasteful number, since it uses less digits than its factorization.

7172922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357.

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

The square root of 7172922 is about 2678.2311326695. The cubic root of 7172922 is about 192.8555031803.

The spelling of 7172922 in words is "seven million, one hundred seventy-two thousand, nine hundred twenty-two".