72708863 has 2 divisors, whose sum is σ = 72708864. Its totient is φ = 72708862.

The previous prime is 72708841. The next prime is 72708907. The reversal of 72708863 is 36880727.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72708863 - 2¹⁸ = 72446719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72708863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72708263) 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, 36354431 + 36354432.

It is an arithmetic number, because the mean of its divisors is an integer number (36354432).

Almost surely, 2^72708863 is an apocalyptic number.

72708863 is a deficient number, since it is larger than the sum of its proper divisors (1).

72708863 is an equidigital number, since it uses as much as digits as its factorization.

72708863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 72708863 is about 8526.9492199731. The cubic root of 72708863 is about 417.3775810896.

The spelling of 72708863 in words is "seventy-two million, seven hundred eight thousand, eight hundred sixty-three".