423800563 has 2 divisors, whose sum is σ = 423800564. Its totient is φ = 423800562.

The previous prime is 423800557. The next prime is 423800569. The reversal of 423800563 is 365008324.

It is a balanced prime because it is at equal distance from previous prime (423800557) and next prime (423800569).

It is a cyclic number.

It is not a de Polignac number, because 423800563 - 2⁹ = 423800051 is a prime.

It is not a weakly prime, because it can be changed into another prime (423800569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211900281 + 211900282.

It is an arithmetic number, because the mean of its divisors is an integer number (211900282).

Almost surely, 2^423800563 is an apocalyptic number.

423800563 is a deficient number, since it is larger than the sum of its proper divisors (1).

423800563 is an equidigital number, since it uses as much as digits as its factorization.

423800563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 423800563 is about 20586.4169539043. The cubic root of 423800563 is about 751.1393426916.

Adding to 423800563 its reverse (365008324), we get a palindrome (788808887).

The spelling of 423800563 in words is "four hundred twenty-three million, eight hundred thousand, five hundred sixty-three".