79106639 has 2 divisors, whose sum is σ = 79106640. Its totient is φ = 79106638.

The previous prime is 79106623. The next prime is 79106653. The reversal of 79106639 is 93660197.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (93660197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79106639 - 2⁴ = 79106623 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79106596 and 79106605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79106659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39553319 + 39553320.

It is an arithmetic number, because the mean of its divisors is an integer number (39553320).

Almost surely, 2^79106639 is an apocalyptic number.

79106639 is a deficient number, since it is larger than the sum of its proper divisors (1).

79106639 is an equidigital number, since it uses as much as digits as its factorization.

79106639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 79106639 is about 8894.1913066900. The cubic root of 79106639 is about 429.2770238000.

The spelling of 79106639 in words is "seventy-nine million, one hundred six thousand, six hundred thirty-nine".