19834193 has 2 divisors, whose sum is σ = 19834194. Its totient is φ = 19834192.

The previous prime is 19834187. The next prime is 19834229. The reversal of 19834193 is 39143891.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19465744 + 368449 = 4412^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 19834193 - 2⁸ = 19833937 is a prime.

It is a super-2 number, since 2×19834193² = 786790423922498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19834103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9917096 + 9917097.

It is an arithmetic number, because the mean of its divisors is an integer number (9917097).

Almost surely, 2^19834193 is an apocalyptic number.

It is an amenable number.

19834193 is a deficient number, since it is larger than the sum of its proper divisors (1).

19834193 is an equidigital number, since it uses as much as digits as its factorization.

19834193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 38.

The square root of 19834193 is about 4453.5595875659. The cubic root of 19834193 is about 270.6895634155.

The spelling of 19834193 in words is "nineteen million, eight hundred thirty-four thousand, one hundred ninety-three".