7207722 has 12 divisors (see below), whose sum is σ = 15616770. Its totient is φ = 2402568.

The previous prime is 7207709. The next prime is 7207729. The reversal of 7207722 is 2277027.

It can be written as a sum of positive squares in only one way, i.e., 5716881 + 1490841 = 2391^2 + 1221^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7207729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200197 + ... + 200232.

Almost surely, 2^7207722 is an apocalyptic number.

7207722 is an abundant number, since it is smaller than the sum of its proper divisors (8409048).

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

7207722 is a wasteful number, since it uses less digits than its factorization.

7207722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400437 (or 400434 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 7207722 is about 2684.7200971423. The cubic root of 7207722 is about 193.1668847477.

The spelling of 7207722 in words is "seven million, two hundred seven thousand, seven hundred twenty-two".