7218704 has 20 divisors (see below), whose sum is σ = 14165760. Its totient is φ = 3563040.

The previous prime is 7218697. The next prime is 7218713. The reversal of 7218704 is 4078127.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1592 + ... + 4119.

It is an arithmetic number, because the mean of its divisors is an integer number (708288).

Almost surely, 2^7218704 is an apocalyptic number.

It is an amenable number.

7218704 is a deficient number, since it is larger than the sum of its proper divisors (6947056).

7218704 is a wasteful number, since it uses less digits than its factorization.

7218704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798 (or 5792 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 7218704 is about 2686.7645970572. The cubic root of 7218704 is about 193.2649407975.

The spelling of 7218704 in words is "seven million, two hundred eighteen thousand, seven hundred four".