72364939 has 8 divisors (see below), whose sum is σ = 76265280. Its totient is φ = 68473800.

The previous prime is 72364927. The next prime is 72364949. The reversal of 72364939 is 93946327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72364939 - 2⁷ = 72364811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72364895 and 72364904.

It is not an unprimeable number, because it can be changed into a prime (72364949) 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, 18984 + ... + 22474.

It is an arithmetic number, because the mean of its divisors is an integer number (9533160).

Almost surely, 2^72364939 is an apocalyptic number.

72364939 is a deficient number, since it is larger than the sum of its proper divisors (3900341).

72364939 is a wasteful number, since it uses less digits than its factorization.

72364939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601.

The product of its digits is 244944, while the sum is 43.

The square root of 72364939 is about 8506.7584308008. The cubic root of 72364939 is about 416.7184542208.

The spelling of 72364939 in words is "seventy-two million, three hundred sixty-four thousand, nine hundred thirty-nine".