19427423 has 2 divisors, whose sum is σ = 19427424. Its totient is φ = 19427422.

The previous prime is 19427393. The next prime is 19427453. The reversal of 19427423 is 32472491.

It is a balanced prime because it is at equal distance from previous prime (19427393) and next prime (19427453).

It is an emirp because it is prime and its reverse (32472491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19427423 - 2⁸ = 19427167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19427423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19427453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9713711 + 9713712.

It is an arithmetic number, because the mean of its divisors is an integer number (9713712).

Almost surely, 2^19427423 is an apocalyptic number.

19427423 is a deficient number, since it is larger than the sum of its proper divisors (1).

19427423 is an equidigital number, since it uses as much as digits as its factorization.

19427423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 19427423 is about 4407.6550454862. The cubic root of 19427423 is about 268.8262860416.

The spelling of 19427423 in words is "nineteen million, four hundred twenty-seven thousand, four hundred twenty-three".