72711479 has 2 divisors, whose sum is σ = 72711480. Its totient is φ = 72711478.

The previous prime is 72711467. The next prime is 72711493. The reversal of 72711479 is 97411727.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72711479 - 2¹⁶ = 72645943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72711449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36355739 + 36355740.

It is an arithmetic number, because the mean of its divisors is an integer number (36355740).

Almost surely, 2^72711479 is an apocalyptic number.

72711479 is a deficient number, since it is larger than the sum of its proper divisors (1).

72711479 is an equidigital number, since it uses as much as digits as its factorization.

72711479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24696, while the sum is 38.

The square root of 72711479 is about 8527.1026146048. The cubic root of 72711479 is about 417.3825866538.

The spelling of 72711479 in words is "seventy-two million, seven hundred eleven thousand, four hundred seventy-nine".