79179871 has 2 divisors, whose sum is σ = 79179872. Its totient is φ = 79179870.

The previous prime is 79179857. The next prime is 79179907. The reversal of 79179871 is 17897197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79179871 - 2⁷ = 79179743 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79179811) 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, 39589935 + 39589936.

It is an arithmetic number, because the mean of its divisors is an integer number (39589936).

Almost surely, 2^79179871 is an apocalyptic number.

79179871 is a deficient number, since it is larger than the sum of its proper divisors (1).

79179871 is an equidigital number, since it uses as much as digits as its factorization.

79179871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 49.

The square root of 79179871 is about 8898.3071985631. The cubic root of 79179871 is about 429.4094489232.

The spelling of 79179871 in words is "seventy-nine million, one hundred seventy-nine thousand, eight hundred seventy-one".