72607279 has 2 divisors, whose sum is σ = 72607280. Its totient is φ = 72607278.

The previous prime is 72607273. The next prime is 72607291. The reversal of 72607279 is 97270627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72607279 - 2¹¹ = 72605231 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 (72607273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36303639 + 36303640.

It is an arithmetic number, because the mean of its divisors is an integer number (36303640).

Almost surely, 2^72607279 is an apocalyptic number.

72607279 is a deficient number, since it is larger than the sum of its proper divisors (1).

72607279 is an equidigital number, since it uses as much as digits as its factorization.

72607279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 72607279 is about 8520.9904940682. The cubic root of 72607279 is about 417.1831130728.

The spelling of 72607279 in words is "seventy-two million, six hundred seven thousand, two hundred seventy-nine".