19830023 has 2 divisors, whose sum is σ = 19830024. Its totient is φ = 19830022.

The previous prime is 19829993. The next prime is 19830047. The reversal of 19830023 is 32003891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19830023 - 2¹⁴ = 19813639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19829974 and 19830001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19830073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9915011 + 9915012.

It is an arithmetic number, because the mean of its divisors is an integer number (9915012).

Almost surely, 2^19830023 is an apocalyptic number.

19830023 is a deficient number, since it is larger than the sum of its proper divisors (1).

19830023 is an equidigital number, since it uses as much as digits as its factorization.

19830023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 19830023 is about 4453.0913981188. The cubic root of 19830023 is about 270.6705918917.

The spelling of 19830023 in words is "nineteen million, eight hundred thirty thousand, twenty-three".