19471411 has 2 divisors, whose sum is σ = 19471412. Its totient is φ = 19471410.

The previous prime is 19471393. The next prime is 19471421. The reversal of 19471411 is 11417491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19471411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19471411.

It is not a weakly prime, because it can be changed into another prime (19471421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9735705 + 9735706.

It is an arithmetic number, because the mean of its divisors is an integer number (9735706).

Almost surely, 2^19471411 is an apocalyptic number.

19471411 is a deficient number, since it is larger than the sum of its proper divisors (1).

19471411 is an equidigital number, since it uses as much as digits as its factorization.

19471411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 28.

The square root of 19471411 is about 4412.6421790125. The cubic root of 19471411 is about 269.0290272385.

The spelling of 19471411 in words is "nineteen million, four hundred seventy-one thousand, four hundred eleven".