72827986 has 16 divisors (see below), whose sum is σ = 136198080. Its totient is φ = 28374480.

The previous prime is 72827981. The next prime is 72827987. The reversal of 72827986 is 68972827.

It is not an unprimeable number, because it can be changed into a prime (72827981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236301 + ... + 236608.

It is an arithmetic number, because the mean of its divisors is an integer number (8512380).

Almost surely, 2^72827986 is an apocalyptic number.

72827986 is a deficient number, since it is larger than the sum of its proper divisors (63370094).

72827986 is a wasteful number, since it uses less digits than its factorization.

72827986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472929.

The product of its digits is 677376, while the sum is 49.

The square root of 72827986 is about 8533.9314503926. The cubic root of 72827986 is about 417.6053944061.

The spelling of 72827986 in words is "seventy-two million, eight hundred twenty-seven thousand, nine hundred eighty-six".