8423863 has 6 divisors (see below), whose sum is σ = 9636056. Its totient is φ = 7213872.

The previous prime is 8423803. The next prime is 8423867. The reversal of 8423863 is 3683248.

It is a de Polignac number, because none of the positive numbers 2^k-8423863 is a prime.

It is a super-2 number, since 2×8423863² = 141922935685538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7131 + ... + 8227.

Almost surely, 2^8423863 is an apocalyptic number.

8423863 is a deficient number, since it is larger than the sum of its proper divisors (1212193).

8423863 is an frugal number, since it uses more digits than its factorization.

8423863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201 (or 1104 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 8423863 is about 2902.3891882379. The cubic root of 8423863 is about 203.4715835455.

The spelling of 8423863 in words is "eight million, four hundred twenty-three thousand, eight hundred sixty-three".