72937957 has 2 divisors, whose sum is σ = 72937958. Its totient is φ = 72937956.

The previous prime is 72937951. The next prime is 72937967. The reversal of 72937957 is 75973927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65707236 + 7230721 = 8106^2 + 2689^2 .

It is an emirp because it is prime and its reverse (75973927) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72937957 - 2¹¹ = 72935909 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72937957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72937951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36468978 + 36468979.

It is an arithmetic number, because the mean of its divisors is an integer number (36468979).

Almost surely, 2^72937957 is an apocalyptic number.

It is an amenable number.

72937957 is a deficient number, since it is larger than the sum of its proper divisors (1).

72937957 is an equidigital number, since it uses as much as digits as its factorization.

72937957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 833490, while the sum is 49.

The square root of 72937957 is about 8540.3721815855. The cubic root of 72937957 is about 417.8154848271.

The spelling of 72937957 in words is "seventy-two million, nine hundred thirty-seven thousand, nine hundred fifty-seven".