7222005 has 48 divisors (see below), whose sum is σ = 14511744. Its totient is φ = 3254400.

The previous prime is 7222001. The next prime is 7222009. The reversal of 7222005 is 5002227.

It is a happy number.

7222005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7222001) and next prime (7222009).

It is not a de Polignac number, because 7222005 - 2² = 7222001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31702 + ... + 31928.

It is an arithmetic number, because the mean of its divisors is an integer number (302328).

Almost surely, 2^7222005 is an apocalyptic number.

It is an amenable number.

7222005 is an abundant number, since it is smaller than the sum of its proper divisors (7289739).

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

7222005 is a wasteful number, since it uses less digits than its factorization.

7222005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 7222005 is about 2687.3788344779. The cubic root of 7222005 is about 193.2943953159.

The spelling of 7222005 in words is "seven million, two hundred twenty-two thousand, five".