19066087 has 2 divisors, whose sum is σ = 19066088. Its totient is φ = 19066086.

The previous prime is 19066049. The next prime is 19066093. The reversal of 19066087 is 78066091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19066087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19066007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9533043 + 9533044.

It is an arithmetic number, because the mean of its divisors is an integer number (9533044).

Almost surely, 2^19066087 is an apocalyptic number.

19066087 is a deficient number, since it is larger than the sum of its proper divisors (1).

19066087 is an equidigital number, since it uses as much as digits as its factorization.

19066087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 19066087 is about 4366.4730618658. The cubic root of 19066087 is about 267.1491869668.

The spelling of 19066087 in words is "nineteen million, sixty-six thousand, eighty-seven".