79689067 has 2 divisors, whose sum is σ = 79689068. Its totient is φ = 79689066.

The previous prime is 79689011. The next prime is 79689073. The reversal of 79689067 is 76098697.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79689067 is a prime.

It is not a weakly prime, because it can be changed into another prime (79689007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39844533 + 39844534.

It is an arithmetic number, because the mean of its divisors is an integer number (39844534).

Almost surely, 2^79689067 is an apocalyptic number.

79689067 is a deficient number, since it is larger than the sum of its proper divisors (1).

79689067 is an equidigital number, since it uses as much as digits as its factorization.

79689067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 79689067 is about 8926.8733048028. The cubic root of 79689067 is about 430.3279758460.

The spelling of 79689067 in words is "seventy-nine million, six hundred eighty-nine thousand, sixty-seven".