72853939 has 2 divisors, whose sum is σ = 72853940. Its totient is φ = 72853938.

The previous prime is 72853909. The next prime is 72853951. The reversal of 72853939 is 93935827.

It is a strong prime.

It is an emirp because it is prime and its reverse (93935827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72853939 - 2¹⁵ = 72821171 is a prime.

It is not a weakly prime, because it can be changed into another prime (72853909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36426969 + 36426970.

It is an arithmetic number, because the mean of its divisors is an integer number (36426970).

Almost surely, 2^72853939 is an apocalyptic number.

72853939 is a deficient number, since it is larger than the sum of its proper divisors (1).

72853939 is an equidigital number, since it uses as much as digits as its factorization.

72853939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 46.

The square root of 72853939 is about 8535.4518919621. The cubic root of 72853939 is about 417.6549945036.

The spelling of 72853939 in words is "seventy-two million, eight hundred fifty-three thousand, nine hundred thirty-nine".