7216956939 has 4 divisors (see below), whose sum is σ = 9622609256. Its totient is φ = 4811304624.

The previous prime is 7216956913. The next prime is 7216957039. The reversal of 7216956939 is 9396596127.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7216956939 - 2⁷ = 7216956811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7216936939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202826154 + ... + 1202826159.

It is an arithmetic number, because the mean of its divisors is an integer number (2405652314).

Almost surely, 2^7216956939 is an apocalyptic number.

7216956939 is a deficient number, since it is larger than the sum of its proper divisors (2405652317).

7216956939 is a wasteful number, since it uses less digits than its factorization.

7216956939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405652316.

The product of its digits is 5511240, while the sum is 57.

The square root of 7216956939 is about 84952.6747018597. The cubic root of 7216956939 is about 1932.4934829945.

The spelling of 7216956939 in words is "seven billion, two hundred sixteen million, nine hundred fifty-six thousand, nine hundred thirty-nine".