17311379 has 2 divisors, whose sum is σ = 17311380. Its totient is φ = 17311378.

The previous prime is 17311351. The next prime is 17311381. The reversal of 17311379 is 97311371.

It is a strong prime.

It is an emirp because it is prime and its reverse (97311371) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17311379 is a prime.

It is a Sophie Germain prime.

Together with 17311381, 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 (17311309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8655689 + 8655690.

It is an arithmetic number, because the mean of its divisors is an integer number (8655690).

Almost surely, 2^17311379 is an apocalyptic number.

17311379 is a deficient number, since it is larger than the sum of its proper divisors (1).

17311379 is an equidigital number, since it uses as much as digits as its factorization.

17311379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3969, while the sum is 32.

The square root of 17311379 is about 4160.6945333682. The cubic root of 17311379 is about 258.6885589296.

The spelling of 17311379 in words is "seventeen million, three hundred eleven thousand, three hundred seventy-nine".