4239817423 has 2 divisors, whose sum is σ = 4239817424. Its totient is φ = 4239817422.

The previous prime is 4239817397. The next prime is 4239817433. The reversal of 4239817423 is 3247189324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4239817423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4239817423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4239817433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119908711 + 2119908712.

It is an arithmetic number, because the mean of its divisors is an integer number (2119908712).

Almost surely, 2^4239817423 is an apocalyptic number.

4239817423 is a deficient number, since it is larger than the sum of its proper divisors (1).

4239817423 is an equidigital number, since it uses as much as digits as its factorization.

4239817423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 4239817423 is about 65113.8804173119. The cubic root of 4239817423 is about 1618.5112348843.

The spelling of 4239817423 in words is "four billion, two hundred thirty-nine million, eight hundred seventeen thousand, four hundred twenty-three".