1423863 has 24 divisors (see below), whose sum is σ = 2384928. Its totient is φ = 801792.

The previous prime is 1423853. The next prime is 1423897. The reversal of 1423863 is 3683241.

It is a happy number.

It is not a de Polignac number, because 1423863 - 2⁸ = 1423607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5995 + ... + 6227.

It is an arithmetic number, because the mean of its divisors is an integer number (99372).

2^1423863 is an apocalyptic number.

1423863 is a deficient number, since it is larger than the sum of its proper divisors (961065).

1423863 is a wasteful number, since it uses less digits than its factorization.

1423863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 340 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1423863 is about 1193.2573067030. The cubic root of 1423863 is about 112.5009185110.

It can be divided in two parts, 142 and 3863, that added together give a triangular number (4005 = T₈₉).

The spelling of 1423863 in words is "one million, four hundred twenty-three thousand, eight hundred sixty-three".