7216816 has 10 divisors (see below), whose sum is σ = 13982612. Its totient is φ = 3608400.

The previous prime is 7216801. The next prime is 7216837. The reversal of 7216816 is 6186127.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225510 + ... + 225541.

Almost surely, 2^7216816 is an apocalyptic number.

It is an amenable number.

7216816 is a deficient number, since it is larger than the sum of its proper divisors (6765796).

7216816 is a wasteful number, since it uses less digits than its factorization.

7216816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451059 (or 451053 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 7216816 is about 2686.4132221235. The cubic root of 7216816 is about 193.2480903109.

The spelling of 7216816 in words is "seven million, two hundred sixteen thousand, eight hundred sixteen".