12196989 has 12 divisors (see below), whose sum is σ = 20134816. Its totient is φ = 6969672.

The previous prime is 12196957. The next prime is 12196997. The reversal of 12196989 is 98969121.

It is not a de Polignac number, because 12196989 - 2⁵ = 12196957 is a prime.

It is a super-2 number, since 2×12196989² = 297533081332242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12196949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96739 + ... + 96864.

Almost surely, 2^12196989 is an apocalyptic number.

It is an amenable number.

12196989 is a deficient number, since it is larger than the sum of its proper divisors (7937827).

12196989 is a wasteful number, since it uses less digits than its factorization.

12196989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193616 (or 193613 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 12196989 is about 3492.4187893207. The cubic root of 12196989 is about 230.1888115621.

The spelling of 12196989 in words is "twelve million, one hundred ninety-six thousand, nine hundred eighty-nine".