79842067 has 2 divisors, whose sum is σ = 79842068. Its totient is φ = 79842066.

The previous prime is 79841999. The next prime is 79842079. The reversal of 79842067 is 76024897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79842067 - 2¹⁵ = 79809299 is a prime.

It is not a weakly prime, because it can be changed into another prime (79842667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39921033 + 39921034.

It is an arithmetic number, because the mean of its divisors is an integer number (39921034).

Almost surely, 2^79842067 is an apocalyptic number.

79842067 is a deficient number, since it is larger than the sum of its proper divisors (1).

79842067 is an equidigital number, since it uses as much as digits as its factorization.

79842067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 79842067 is about 8935.4388252620. The cubic root of 79842067 is about 430.6032042673.

The spelling of 79842067 in words is "seventy-nine million, eight hundred forty-two thousand, sixty-seven".