423863 has 12 divisors (see below), whose sum is σ = 485184. Its totient is φ = 369600.

The previous prime is 423859. The next prime is 423869. The reversal of 423863 is 368324.

It is not a de Polignac number, because 423863 - 2² = 423859 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3695 + ... + 3807.

It is an arithmetic number, because the mean of its divisors is an integer number (40432).

2⁴²³⁸⁶³ is an apocalyptic number.

423863 is a deficient number, since it is larger than the sum of its proper divisors (61321).

423863 is a wasteful number, since it uses less digits than its factorization.

423863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 155 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 423863 is about 651.0476173061. The cubic root of 423863 is about 75.1176228425.

The spelling of 423863 in words is "four hundred twenty-three thousand, eight hundred sixty-three".