72316801 has 2 divisors, whose sum is σ = 72316802. Its totient is φ = 72316800.

The previous prime is 72316789. The next prime is 72316819. The reversal of 72316801 is 10861327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38688400 + 33628401 = 6220^2 + 5799^2 .

It is a cyclic number.

It is not a de Polignac number, because 72316801 - 2⁹ = 72316289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72316801.

It is not a weakly prime, because it can be changed into another prime (72316891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36158400 + 36158401.

It is an arithmetic number, because the mean of its divisors is an integer number (36158401).

Almost surely, 2^72316801 is an apocalyptic number.

It is an amenable number.

72316801 is a deficient number, since it is larger than the sum of its proper divisors (1).

72316801 is an equidigital number, since it uses as much as digits as its factorization.

72316801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 72316801 is about 8503.9285627291. The cubic root of 72316801 is about 416.6260317350.

The spelling of 72316801 in words is "seventy-two million, three hundred sixteen thousand, eight hundred one".