12208869 has 12 divisors (see below), whose sum is σ = 17742816. Its totient is φ = 8089512.

The previous prime is 12208843. The next prime is 12208871. The reversal of 12208869 is 96880221.

It is not a de Polignac number, because 12208869 - 2²⁰ = 11160293 is a prime.

It is a super-2 number, since 2×12208869² = 298112964518322, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2559 + ... + 5564.

It is an arithmetic number, because the mean of its divisors is an integer number (1478568).

Almost surely, 2^12208869 is an apocalyptic number.

It is an amenable number.

12208869 is a deficient number, since it is larger than the sum of its proper divisors (5533947).

12208869 is a wasteful number, since it uses less digits than its factorization.

12208869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8296 (or 8293 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 12208869 is about 3494.1192023169. The cubic root of 12208869 is about 230.2635227799.

The spelling of 12208869 in words is "twelve million, two hundred eight thousand, eight hundred sixty-nine".