79143017 has 2 divisors, whose sum is σ = 79143018. Its totient is φ = 79143016.

The previous prime is 79142993. The next prime is 79143019. The reversal of 79143017 is 71034197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78340201 + 802816 = 8851^2 + 896^2 .

It is a cyclic number.

It is not a de Polignac number, because 79143017 - 2⁸ = 79142761 is a prime.

Together with 79143019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79143019) 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, 39571508 + 39571509.

It is an arithmetic number, because the mean of its divisors is an integer number (39571509).

Almost surely, 2^79143017 is an apocalyptic number.

It is an amenable number.

79143017 is a deficient number, since it is larger than the sum of its proper divisors (1).

79143017 is an equidigital number, since it uses as much as digits as its factorization.

79143017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 79143017 is about 8896.2361142227. The cubic root of 79143017 is about 429.3428161980.

The spelling of 79143017 in words is "seventy-nine million, one hundred forty-three thousand, seventeen".