7222977 has 18 divisors (see below), whose sum is σ = 11086998. Its totient is φ = 4530432.

The previous prime is 7222939. The next prime is 7222981. The reversal of 7222977 is 7792227.

7222977 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1648656 + 5574321 = 1284^2 + 2361^2 .

It is not a de Polignac number, because 7222977 - 2⁷ = 7222849 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222937) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1213 + ... + 3989.

Almost surely, 2^7222977 is an apocalyptic number.

It is an amenable number.

7222977 is a deficient number, since it is larger than the sum of its proper divisors (3864021).

7222977 is a wasteful number, since it uses less digits than its factorization.

7222977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817 (or 2797 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 7222977 is about 2687.5596737561. The cubic root of 7222977 is about 193.3030666716.

The spelling of 7222977 in words is "seven million, two hundred twenty-two thousand, nine hundred seventy-seven".