18340711 has 2 divisors, whose sum is σ = 18340712. Its totient is φ = 18340710.

The previous prime is 18340709. The next prime is 18340723. The reversal of 18340711 is 11704381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18340711 - 2¹ = 18340709 is a prime.

Together with 18340709, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18340741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9170355 + 9170356.

It is an arithmetic number, because the mean of its divisors is an integer number (9170356).

Almost surely, 2^18340711 is an apocalyptic number.

18340711 is a deficient number, since it is larger than the sum of its proper divisors (1).

18340711 is an equidigital number, since it uses as much as digits as its factorization.

18340711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 18340711 is about 4282.6056320890. The cubic root of 18340711 is about 263.7173618486.

The spelling of 18340711 in words is "eighteen million, three hundred forty thousand, seven hundred eleven".