72739211 has 2 divisors, whose sum is σ = 72739212. Its totient is φ = 72739210.

The previous prime is 72739157. The next prime is 72739213. The reversal of 72739211 is 11293727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72739211 - 2¹⁴ = 72722827 is a prime.

Together with 72739213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72739213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36369605 + 36369606.

It is an arithmetic number, because the mean of its divisors is an integer number (36369606).

Almost surely, 2^72739211 is an apocalyptic number.

72739211 is a deficient number, since it is larger than the sum of its proper divisors (1).

72739211 is an equidigital number, since it uses as much as digits as its factorization.

72739211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 32.

The square root of 72739211 is about 8528.7285687844. The cubic root of 72739211 is about 417.4356428463.

The spelling of 72739211 in words is "seventy-two million, seven hundred thirty-nine thousand, two hundred eleven".