72873763 has 2 divisors, whose sum is σ = 72873764. Its totient is φ = 72873762.

The previous prime is 72873739. The next prime is 72873767. The reversal of 72873763 is 36737827.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72873763 is a prime.

It is not a weakly prime, because it can be changed into another prime (72873767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36436881 + 36436882.

It is an arithmetic number, because the mean of its divisors is an integer number (36436882).

Almost surely, 2^72873763 is an apocalyptic number.

72873763 is a deficient number, since it is larger than the sum of its proper divisors (1).

72873763 is an equidigital number, since it uses as much as digits as its factorization.

72873763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 43.

The square root of 72873763 is about 8536.6130871675. The cubic root of 72873763 is about 417.6928732231.

The spelling of 72873763 in words is "seventy-two million, eight hundred seventy-three thousand, seven hundred sixty-three".