72716219 has 2 divisors, whose sum is σ = 72716220. Its totient is φ = 72716218.

The previous prime is 72716213. The next prime is 72716221. The reversal of 72716219 is 91261727.

It is a strong prime.

It is an emirp because it is prime and its reverse (91261727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72716219 - 2²⁰ = 71667643 is a prime.

It is a super-2 number, since 2×72716219² = 10575297011311922, which contains 22 as substring.

Together with 72716221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72716213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36358109 + 36358110.

It is an arithmetic number, because the mean of its divisors is an integer number (36358110).

Almost surely, 2^72716219 is an apocalyptic number.

72716219 is a deficient number, since it is larger than the sum of its proper divisors (1).

72716219 is an equidigital number, since it uses as much as digits as its factorization.

72716219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 35.

The square root of 72716219 is about 8527.3805473897. The cubic root of 72716219 is about 417.3916560630.

The spelling of 72716219 in words is "seventy-two million, seven hundred sixteen thousand, two hundred nineteen".