72327523 has 2 divisors, whose sum is σ = 72327524. Its totient is φ = 72327522.

The previous prime is 72327511. The next prime is 72327529. The reversal of 72327523 is 32572327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72327523 - 2⁵ = 72327491 is a prime.

It is not a weakly prime, because it can be changed into another prime (72327529) 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, 36163761 + 36163762.

It is an arithmetic number, because the mean of its divisors is an integer number (36163762).

Almost surely, 2^72327523 is an apocalyptic number.

72327523 is a deficient number, since it is larger than the sum of its proper divisors (1).

72327523 is an equidigital number, since it uses as much as digits as its factorization.

72327523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 31.

The square root of 72327523 is about 8504.5589538788. The cubic root of 72327523 is about 416.6466209734.

The spelling of 72327523 in words is "seventy-two million, three hundred twenty-seven thousand, five hundred twenty-three".