7223215 has 8 divisors (see below), whose sum is σ = 9177840. Its totient is φ = 5438592.

The previous prime is 7223201. The next prime is 7223221. The reversal of 7223215 is 5123227.

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

It is a cyclic number.

It is not a de Polignac number, because 7223215 - 2⁷ = 7223087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42405 + ... + 42574.

It is an arithmetic number, because the mean of its divisors is an integer number (1147230).

Almost surely, 2^7223215 is an apocalyptic number.

7223215 is a deficient number, since it is larger than the sum of its proper divisors (1954625).

7223215 is a wasteful number, since it uses less digits than its factorization.

7223215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85001.

The product of its digits is 840, while the sum is 22.

The square root of 7223215 is about 2687.6039514780. The cubic root of 7223215 is about 193.3051897863.

The spelling of 7223215 in words is "seven million, two hundred twenty-three thousand, two hundred fifteen".