79119811 has 2 divisors, whose sum is σ = 79119812. Its totient is φ = 79119810.

The previous prime is 79119797. The next prime is 79119851. The reversal of 79119811 is 11891197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79119811 - 2⁵ = 79119779 is a prime.

It is not a weakly prime, because it can be changed into another prime (79119851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39559905 + 39559906.

It is an arithmetic number, because the mean of its divisors is an integer number (39559906).

Almost surely, 2^79119811 is an apocalyptic number.

79119811 is a deficient number, since it is larger than the sum of its proper divisors (1).

79119811 is an equidigital number, since it uses as much as digits as its factorization.

79119811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 37.

The square root of 79119811 is about 8894.9317591536. The cubic root of 79119811 is about 429.3008486994.

It can be divided in two parts, 791 and 19811, that added together give a palindrome (20602).

The spelling of 79119811 in words is "seventy-nine million, one hundred nineteen thousand, eight hundred eleven".