72373597 has 2 divisors, whose sum is σ = 72373598. Its totient is φ = 72373596.

The previous prime is 72373579. The next prime is 72373619. The reversal of 72373597 is 79537327.

Together with previous prime (72373579) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71723961 + 649636 = 8469^2 + 806^2 .

It is a cyclic number.

It is not a de Polignac number, because 72373597 - 2¹¹ = 72371549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72373507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36186798 + 36186799.

It is an arithmetic number, because the mean of its divisors is an integer number (36186799).

Almost surely, 2^72373597 is an apocalyptic number.

It is an amenable number.

72373597 is a deficient number, since it is larger than the sum of its proper divisors (1).

72373597 is an equidigital number, since it uses as much as digits as its factorization.

72373597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 277830, while the sum is 43.

The square root of 72373597 is about 8507.2673050751. The cubic root of 72373597 is about 416.7350727866.

The spelling of 72373597 in words is "seventy-two million, three hundred seventy-three thousand, five hundred ninety-seven".