72595973 has 2 divisors, whose sum is σ = 72595974. Its totient is φ = 72595972.

The previous prime is 72595931. The next prime is 72595987. The reversal of 72595973 is 37959527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68442529 + 4153444 = 8273^2 + 2038^2 .

It is an emirp because it is prime and its reverse (37959527) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72595973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72595573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36297986 + 36297987.

It is an arithmetic number, because the mean of its divisors is an integer number (36297987).

Almost surely, 2^72595973 is an apocalyptic number.

It is an amenable number.

72595973 is a deficient number, since it is larger than the sum of its proper divisors (1).

72595973 is an equidigital number, since it uses as much as digits as its factorization.

72595973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 595350, while the sum is 47.

The square root of 72595973 is about 8520.3270477136. The cubic root of 72595973 is about 417.1614581406.

The spelling of 72595973 in words is "seventy-two million, five hundred ninety-five thousand, nine hundred seventy-three".