72183899 has 2 divisors, whose sum is σ = 72183900. Its totient is φ = 72183898.

The previous prime is 72183893. The next prime is 72183931. The reversal of 72183899 is 99838127.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72183899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72183893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36091949 + 36091950.

It is an arithmetic number, because the mean of its divisors is an integer number (36091950).

Almost surely, 2^72183899 is an apocalyptic number.

72183899 is a deficient number, since it is larger than the sum of its proper divisors (1).

72183899 is an equidigital number, since it uses as much as digits as its factorization.

72183899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 47.

The square root of 72183899 is about 8496.1108161323. The cubic root of 72183899 is about 416.3706536106.

The spelling of 72183899 in words is "seventy-two million, one hundred eighty-three thousand, eight hundred ninety-nine".