72673339 has 2 divisors, whose sum is σ = 72673340. Its totient is φ = 72673338.

The previous prime is 72673319. The next prime is 72673343. The reversal of 72673339 is 93337627.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72673339 is a prime.

It is not a weakly prime, because it can be changed into another prime (72673319) 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, 36336669 + 36336670.

It is an arithmetic number, because the mean of its divisors is an integer number (36336670).

Almost surely, 2^72673339 is an apocalyptic number.

72673339 is a deficient number, since it is larger than the sum of its proper divisors (1).

72673339 is an equidigital number, since it uses as much as digits as its factorization.

72673339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 40.

The square root of 72673339 is about 8524.8659226993. The cubic root of 72673339 is about 417.3095960877.

The spelling of 72673339 in words is "seventy-two million, six hundred seventy-three thousand, three hundred thirty-nine".