72386239 has 2 divisors, whose sum is σ = 72386240. Its totient is φ = 72386238.

The previous prime is 72386231. The next prime is 72386261. The reversal of 72386239 is 93268327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72386239 - 2³ = 72386231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72386231) 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, 36193119 + 36193120.

It is an arithmetic number, because the mean of its divisors is an integer number (36193120).

Almost surely, 2^72386239 is an apocalyptic number.

72386239 is a deficient number, since it is larger than the sum of its proper divisors (1).

72386239 is an equidigital number, since it uses as much as digits as its factorization.

72386239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 72386239 is about 8508.0102844320. The cubic root of 72386239 is about 416.7593360460.

The spelling of 72386239 in words is "seventy-two million, three hundred eighty-six thousand, two hundred thirty-nine".