6915222 has 24 divisors (see below), whose sum is σ = 15084576. Its totient is φ = 2289456.

The previous prime is 6915199. The next prime is 6915247. The reversal of 6915222 is 2225196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1603 + ... + 4049.

It is an arithmetic number, because the mean of its divisors is an integer number (628524).

Almost surely, 2^6915222 is an apocalyptic number.

6915222 is an abundant number, since it is smaller than the sum of its proper divisors (8169354).

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

6915222 is a wasteful number, since it uses less digits than its factorization.

6915222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612 (or 2609 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 6915222 is about 2629.6809692432. The cubic root of 6915222 is about 190.5177200538.

The spelling of 6915222 in words is "six million, nine hundred fifteen thousand, two hundred twenty-two".