72914537 has 2 divisors, whose sum is σ = 72914538. Its totient is φ = 72914536.

The previous prime is 72914519. The next prime is 72914557. The reversal of 72914537 is 73541927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72914521 + 16 = 8539^2 + 4^2 .

It is an emirp because it is prime and its reverse (73541927) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72914537 - 2¹⁰ = 72913513 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 72914537.

It is not a weakly prime, because it can be changed into another prime (72914557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36457268 + 36457269.

It is an arithmetic number, because the mean of its divisors is an integer number (36457269).

Almost surely, 2^72914537 is an apocalyptic number.

It is an amenable number.

72914537 is a deficient number, since it is larger than the sum of its proper divisors (1).

72914537 is an equidigital number, since it uses as much as digits as its factorization.

72914537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 72914537 is about 8539.0009368778. Note that the first 3 decimals coincide. The cubic root of 72914537 is about 417.7707605775.

The spelling of 72914537 in words is "seventy-two million, nine hundred fourteen thousand, five hundred thirty-seven".