72373723 has 2 divisors, whose sum is σ = 72373724. Its totient is φ = 72373722.

The previous prime is 72373699. The next prime is 72373751. The reversal of 72373723 is 32737327.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72373723 is a prime.

It is not a weakly prime, because it can be changed into another prime (72373123) 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, 36186861 + 36186862.

It is an arithmetic number, because the mean of its divisors is an integer number (36186862).

Almost surely, 2^72373723 is an apocalyptic number.

72373723 is a deficient number, since it is larger than the sum of its proper divisors (1).

72373723 is an equidigital number, since it uses as much as digits as its factorization.

72373723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37044, while the sum is 34.

The square root of 72373723 is about 8507.2747105051. The cubic root of 72373723 is about 416.7353146271.

The spelling of 72373723 in words is "seventy-two million, three hundred seventy-three thousand, seven hundred twenty-three".