1711979 has 2 divisors, whose sum is σ = 1711980. Its totient is φ = 1711978.

The previous prime is 1711973. The next prime is 1711981. The reversal of 1711979 is 9791171.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1711979 - 2¹⁶ = 1646443 is a prime.

Together with 1711981, 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 (1711973) 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, 855989 + 855990.

It is an arithmetic number, because the mean of its divisors is an integer number (855990).

2^1711979 is an apocalyptic number.

1711979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1711979 is an equidigital number, since it uses as much as digits as its factorization.

1711979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3969, while the sum is 35.

The square root of 1711979 is about 1308.4261538199. The cubic root of 1711979 is about 119.6279914573.

The spelling of 1711979 in words is "one million, seven hundred eleven thousand, nine hundred seventy-nine".