72259079 has 2 divisors, whose sum is σ = 72259080. Its totient is φ = 72259078.

The previous prime is 72259073. The next prime is 72259081. The reversal of 72259079 is 97095227.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (97095227) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72259079 is a prime.

Together with 72259081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72259073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36129539 + 36129540.

It is an arithmetic number, because the mean of its divisors is an integer number (36129540).

Almost surely, 2^72259079 is an apocalyptic number.

72259079 is a deficient number, since it is larger than the sum of its proper divisors (1).

72259079 is an equidigital number, since it uses as much as digits as its factorization.

72259079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 72259079 is about 8500.5340420470. The cubic root of 72259079 is about 416.5151543701.

The spelling of 72259079 in words is "seventy-two million, two hundred fifty-nine thousand, seventy-nine".