7222277 has 4 divisors (see below), whose sum is σ = 7229376. Its totient is φ = 7215180.

The previous prime is 7222219. The next prime is 7222279. The reversal of 7222277 is 7722227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7222277 - 2⁸ = 7222021 is a prime.

It is a super-2 number, since 2×7222277² = 104322570129458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703 + ... + 4164.

It is an arithmetic number, because the mean of its divisors is an integer number (1807344).

Almost surely, 2^7222277 is an apocalyptic number.

It is an amenable number.

7222277 is a deficient number, since it is larger than the sum of its proper divisors (7099).

7222277 is a wasteful number, since it uses less digits than its factorization.

7222277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7098.

The product of its digits is 5488, while the sum is 29.

The square root of 7222277 is about 2687.4294409342. The cubic root of 7222277 is about 193.2968219465.

The spelling of 7222277 in words is "seven million, two hundred twenty-two thousand, two hundred seventy-seven".