72882891 has 12 divisors (see below), whose sum is σ = 108671680. Its totient is φ = 47021040.

The previous prime is 72882889. The next prime is 72882899. The reversal of 72882891 is 19828827.

It is a happy number.

It is not a de Polignac number, because 72882891 - 2¹ = 72882889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72882899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130336 + ... + 130893.

Almost surely, 2^72882891 is an apocalyptic number.

72882891 is a deficient number, since it is larger than the sum of its proper divisors (35788789).

72882891 is a wasteful number, since it uses less digits than its factorization.

72882891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261266 (or 261263 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 72882891 is about 8537.1477086905. The cubic root of 72882891 is about 417.7103122446.

The spelling of 72882891 in words is "seventy-two million, eight hundred eighty-two thousand, eight hundred ninety-one".