72116808 has 16 divisors (see below), whose sum is σ = 180292080. Its totient is φ = 24038928.

The previous prime is 72116801. The next prime is 72116813. The reversal of 72116808 is 80861127.

It is a happy number.

It is a super-2 number, since 2×72116808² = 10401667992217728, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72116801) 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, 1502410 + ... + 1502457.

It is an arithmetic number, because the mean of its divisors is an integer number (11268255).

Almost surely, 2^72116808 is an apocalyptic number.

It is an amenable number.

72116808 is an abundant number, since it is smaller than the sum of its proper divisors (108175272).

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

72116808 is a wasteful number, since it uses less digits than its factorization.

72116808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004876 (or 3004872 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 72116808 is about 8492.1615622879. The cubic root of 72116808 is about 416.2416156812.

The spelling of 72116808 in words is "seventy-two million, one hundred sixteen thousand, eight hundred eight".