72520367 has 2 divisors, whose sum is σ = 72520368. Its totient is φ = 72520366.

The previous prime is 72520363. The next prime is 72520373. The reversal of 72520367 is 76302527.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72520367 - 2² = 72520363 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 (72520363) 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, 36260183 + 36260184.

It is an arithmetic number, because the mean of its divisors is an integer number (36260184).

Almost surely, 2^72520367 is an apocalyptic number.

72520367 is a deficient number, since it is larger than the sum of its proper divisors (1).

72520367 is an equidigital number, since it uses as much as digits as its factorization.

72520367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 72520367 is about 8515.8890904004. The cubic root of 72520367 is about 417.0165884669.

The spelling of 72520367 in words is "seventy-two million, five hundred twenty thousand, three hundred sixty-seven".