8266838 has 4 divisors (see below), whose sum is σ = 12400260. Its totient is φ = 4133418.

The previous prime is 8266837. The next prime is 8266849. The reversal of 8266838 is 8386628.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×8266838² = 136681221036488, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8266795 and 8266804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8266837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2066708 + ... + 2066711.

It is an arithmetic number, because the mean of its divisors is an integer number (3100065).

Almost surely, 2^8266838 is an apocalyptic number.

8266838 is a deficient number, since it is larger than the sum of its proper divisors (4133422).

8266838 is a wasteful number, since it uses less digits than its factorization.

8266838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133421.

The product of its digits is 110592, while the sum is 41.

The square root of 8266838 is about 2875.2109487827. The cubic root of 8266838 is about 202.1993750884.

The spelling of 8266838 in words is "eight million, two hundred sixty-six thousand, eight hundred thirty-eight".