72914297 has 2 divisors, whose sum is σ = 72914298. Its totient is φ = 72914296.

The previous prime is 72914293. The next prime is 72914311. The reversal of 72914297 is 79241927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72097081 + 817216 = 8491^2 + 904^2 .

It is a cyclic number.

It is not a de Polignac number, because 72914297 - 2² = 72914293 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72914293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36457148 + 36457149.

It is an arithmetic number, because the mean of its divisors is an integer number (36457149).

Almost surely, 2^72914297 is an apocalyptic number.

It is an amenable number.

72914297 is a deficient number, since it is larger than the sum of its proper divisors (1).

72914297 is an equidigital number, since it uses as much as digits as its factorization.

72914297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 41.

The square root of 72914297 is about 8538.9868837000. The cubic root of 72914297 is about 417.7703022094.

The spelling of 72914297 in words is "seventy-two million, nine hundred fourteen thousand, two hundred ninety-seven".