72936319 has 2 divisors, whose sum is σ = 72936320. Its totient is φ = 72936318.

The previous prime is 72936317. The next prime is 72936329. The reversal of 72936319 is 91363927.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72936319 - 2¹ = 72936317 is a prime.

It is a super-2 number, since 2×72936319² = 10639413258539522, which contains 22 as substring.

Together with 72936317, it forms a pair of twin primes.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72936317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36468159 + 36468160.

It is an arithmetic number, because the mean of its divisors is an integer number (36468160).

Almost surely, 2^72936319 is an apocalyptic number.

72936319 is a deficient number, since it is larger than the sum of its proper divisors (1).

72936319 is an equidigital number, since it uses as much as digits as its factorization.

72936319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 40.

The square root of 72936319 is about 8540.2762835871. The cubic root of 72936319 is about 417.8123571146.

The spelling of 72936319 in words is "seventy-two million, nine hundred thirty-six thousand, three hundred nineteen".