79079669 has 2 divisors, whose sum is σ = 79079670. Its totient is φ = 79079668.

The previous prime is 79079641. The next prime is 79079683. The reversal of 79079669 is 96697097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69388900 + 9690769 = 8330^2 + 3113^2 .

It is a cyclic number.

It is not a de Polignac number, because 79079669 - 2²⁴ = 62302453 is a prime.

It is a super-2 number, since 2×79079669² = 12507188098299122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79079669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79079639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39539834 + 39539835.

It is an arithmetic number, because the mean of its divisors is an integer number (39539835).

Almost surely, 2^79079669 is an apocalyptic number.

It is an amenable number.

79079669 is a deficient number, since it is larger than the sum of its proper divisors (1).

79079669 is an equidigital number, since it uses as much as digits as its factorization.

79079669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 79079669 is about 8892.6750193628. The cubic root of 79079669 is about 429.2282334690.

It can be divided in two parts, 7907 and 9669, that added together give a cube (17576 = 26³).

The spelling of 79079669 in words is "seventy-nine million, seventy-nine thousand, six hundred sixty-nine".