8266863 has 16 divisors (see below), whose sum is σ = 12413952. Its totient is φ = 4848000.

The previous prime is 8266861. The next prime is 8266889. The reversal of 8266863 is 3686628.

It is not a de Polignac number, because 8266863 - 2¹ = 8266861 is a prime.

It is an Ulam number.

8266863 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8266861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3018 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (775872).

Almost surely, 2^8266863 is an apocalyptic number.

8266863 is a deficient number, since it is larger than the sum of its proper divisors (4147089).

8266863 is a wasteful number, since it uses less digits than its factorization.

8266863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8126.

The product of its digits is 82944, while the sum is 39.

The square root of 8266863 is about 2875.2152962865. The cubic root of 8266863 is about 202.1995789139.

The spelling of 8266863 in words is "eight million, two hundred sixty-six thousand, eight hundred sixty-three".