79018369 has 2 divisors, whose sum is σ = 79018370. Its totient is φ = 79018368.

The previous prime is 79018367. The next prime is 79018399. The reversal of 79018369 is 96381097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53465344 + 25553025 = 7312^2 + 5055^2 .

It is a cyclic number.

It is not a de Polignac number, because 79018369 - 2¹ = 79018367 is a prime.

It is a super-2 number, since 2×79018369² = 12487805278840322, which contains 22 as substring.

Together with 79018367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (79018361) 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, 39509184 + 39509185.

It is an arithmetic number, because the mean of its divisors is an integer number (39509185).

Almost surely, 2^79018369 is an apocalyptic number.

It is an amenable number.

79018369 is a deficient number, since it is larger than the sum of its proper divisors (1).

79018369 is an equidigital number, since it uses as much as digits as its factorization.

79018369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 79018369 is about 8889.2276942376. The cubic root of 79018369 is about 429.1172968544.

The spelling of 79018369 in words is "seventy-nine million, eighteen thousand, three hundred sixty-nine".