79165469 has 2 divisors, whose sum is σ = 79165470. Its totient is φ = 79165468.

The previous prime is 79165453. The next prime is 79165477. The reversal of 79165469 is 96456197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73736569 + 5428900 = 8587^2 + 2330^2 .

It is a cyclic number.

It is not a de Polignac number, because 79165469 - 2⁴ = 79165453 is a prime.

It is a super-2 number, since 2×79165469² = 12534342963979922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79165409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39582734 + 39582735.

It is an arithmetic number, because the mean of its divisors is an integer number (39582735).

Almost surely, 2^79165469 is an apocalyptic number.

It is an amenable number.

79165469 is a deficient number, since it is larger than the sum of its proper divisors (1).

79165469 is an equidigital number, since it uses as much as digits as its factorization.

79165469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 79165469 is about 8897.4979067151. The cubic root of 79165469 is about 429.3834122980.

The spelling of 79165469 in words is "seventy-nine million, one hundred sixty-five thousand, four hundred sixty-nine".