12089836 has 18 divisors (see below), whose sum is σ = 23256380. Its totient is φ = 5495160.

The previous prime is 12089821. The next prime is 12089843. The reversal of 12089836 is 63898021.

It is a junction number, because it is equal to n+sod(n) for n = 12089795 and 12089804.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12006 + ... + 12973.

Almost surely, 2^12089836 is an apocalyptic number.

It is an amenable number.

12089836 is a deficient number, since it is larger than the sum of its proper divisors (11166544).

12089836 is a wasteful number, since it uses less digits than its factorization.

12089836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25005 (or 24992 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 12089836 is about 3477.0441469731. The cubic root of 12089836 is about 229.5127428874.

The spelling of 12089836 in words is "twelve million, eighty-nine thousand, eight hundred thirty-six".