7226215 has 8 divisors (see below), whose sum is σ = 8705088. Its totient is φ = 5758560.

The previous prime is 7226201. The next prime is 7226227. The reversal of 7226215 is 5126227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7226215 - 2⁵ = 7226183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7226215.

It is a congruent number.

It is an unprimeable number.

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, 1312 + ... + 4021.

It is an arithmetic number, because the mean of its divisors is an integer number (1088136).

Almost surely, 2^7226215 is an apocalyptic number.

7226215 is a deficient number, since it is larger than the sum of its proper divisors (1478873).

7226215 is a wasteful number, since it uses less digits than its factorization.

7226215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609.

The product of its digits is 1680, while the sum is 25.

The square root of 7226215 is about 2688.1620114867. The cubic root of 7226215 is about 193.3319477375.

The spelling of 7226215 in words is "seven million, two hundred twenty-six thousand, two hundred fifteen".