7222726 has 16 divisors (see below), whose sum is σ = 12432384. Its totient is φ = 3082824.

The previous prime is 7222723. The next prime is 7222729. The reversal of 7222726 is 6272227.

It is an interprime number because it is at equal distance from previous prime (7222723) and next prime (7222729).

It is a junction number, because it is equal to n+sod(n) for n = 7222694 and 7222703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3051 + ... + 4873.

It is an arithmetic number, because the mean of its divisors is an integer number (777024).

Almost surely, 2^7222726 is an apocalyptic number.

7222726 is a deficient number, since it is larger than the sum of its proper divisors (5209658).

7222726 is a wasteful number, since it uses less digits than its factorization.

7222726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115.

The product of its digits is 4704, while the sum is 28.

The square root of 7222726 is about 2687.5129767129. The cubic root of 7222726 is about 193.3008275380.

The spelling of 7222726 in words is "seven million, two hundred twenty-two thousand, seven hundred twenty-six".