72822916 has 24 divisors (see below), whose sum is σ = 129366720. Its totient is φ = 35865312.

The previous prime is 72822913. The next prime is 72822947. The reversal of 72822916 is 61922827.

It is a hoax number, since the sum of its digits (37) 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 (72822913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97641 + ... + 98383.

It is an arithmetic number, because the mean of its divisors is an integer number (5390280).

Almost surely, 2^72822916 is an apocalyptic number.

It is an amenable number.

72822916 is a deficient number, since it is larger than the sum of its proper divisors (56543804).

72822916 is a wasteful number, since it uses less digits than its factorization.

72822916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1081 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 72822916 is about 8533.6343957308. The cubic root of 72822916 is about 417.5957034956.

The spelling of 72822916 in words is "seventy-two million, eight hundred twenty-two thousand, nine hundred sixteen".