72502723 has 2 divisors, whose sum is σ = 72502724. Its totient is φ = 72502722.

The previous prime is 72502691. The next prime is 72502733. The reversal of 72502723 is 32720527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72502723 - 2⁵ = 72502691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72502691 and 72502700.

It is not a weakly prime, because it can be changed into another prime (72502733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36251361 + 36251362.

It is an arithmetic number, because the mean of its divisors is an integer number (36251362).

Almost surely, 2^72502723 is an apocalyptic number.

72502723 is a deficient number, since it is larger than the sum of its proper divisors (1).

72502723 is an equidigital number, since it uses as much as digits as its factorization.

72502723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 72502723 is about 8514.8530815276. The cubic root of 72502723 is about 416.9827660719.

The spelling of 72502723 in words is "seventy-two million, five hundred two thousand, seven hundred twenty-three".