72873179 has 2 divisors, whose sum is σ = 72873180. Its totient is φ = 72873178.

The previous prime is 72873173. The next prime is 72873197. The reversal of 72873179 is 97137827.

Together with next prime (72873197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72873179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72873173) 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, 36436589 + 36436590.

It is an arithmetic number, because the mean of its divisors is an integer number (36436590).

Almost surely, 2^72873179 is an apocalyptic number.

72873179 is a deficient number, since it is larger than the sum of its proper divisors (1).

72873179 is an equidigital number, since it uses as much as digits as its factorization.

72873179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 44.

The square root of 72873179 is about 8536.5788814958. The cubic root of 72873179 is about 417.6917574430.

The spelling of 72873179 in words is "seventy-two million, eight hundred seventy-three thousand, one hundred seventy-nine".