79028617 has 2 divisors, whose sum is σ = 79028618. Its totient is φ = 79028616.

The previous prime is 79028569. The next prime is 79028623. The reversal of 79028617 is 71682097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47623801 + 31404816 = 6901^2 + 5604^2 .

It is a cyclic number.

It is not a de Polignac number, because 79028617 - 2¹¹ = 79026569 is a prime.

It is a super-3 number, since 3×79028617³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79028617.

It is not a weakly prime, because it can be changed into another prime (79028627) 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, 39514308 + 39514309.

It is an arithmetic number, because the mean of its divisors is an integer number (39514309).

Almost surely, 2^79028617 is an apocalyptic number.

It is an amenable number.

79028617 is a deficient number, since it is larger than the sum of its proper divisors (1).

79028617 is an equidigital number, since it uses as much as digits as its factorization.

79028617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 79028617 is about 8889.8041035784. The cubic root of 79028617 is about 429.1358469882.

The spelling of 79028617 in words is "seventy-nine million, twenty-eight thousand, six hundred seventeen".