19340911 has 2 divisors, whose sum is σ = 19340912. Its totient is φ = 19340910.

The previous prime is 19340903. The next prime is 19340921. The reversal of 19340911 is 11904391.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19340911 - 2³ = 19340903 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19340911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19340921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9670455 + 9670456.

It is an arithmetic number, because the mean of its divisors is an integer number (9670456).

Almost surely, 2^19340911 is an apocalyptic number.

19340911 is a deficient number, since it is larger than the sum of its proper divisors (1).

19340911 is an equidigital number, since it uses as much as digits as its factorization.

19340911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 19340911 is about 4397.8302604807. The cubic root of 19340911 is about 268.4266566675.

The spelling of 19340911 in words is "nineteen million, three hundred forty thousand, nine hundred eleven".