12198916 has 6 divisors (see below), whose sum is σ = 21348110. Its totient is φ = 6099456.

The previous prime is 12198913. The next prime is 12198917. The reversal of 12198916 is 61989121.

It can be written as a sum of positive squares in only one way, i.e., 8761600 + 3437316 = 2960^2 + 1854^2 .

It is not an unprimeable number, because it can be changed into a prime (12198913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1524861 + ... + 1524868.

Almost surely, 2^12198916 is an apocalyptic number.

It is an amenable number.

12198916 is a deficient number, since it is larger than the sum of its proper divisors (9149194).

12198916 is a wasteful number, since it uses less digits than its factorization.

12198916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049733 (or 3049731 counting only the distinct ones).

The product of its digits is 7776, while the sum is 37.

The square root of 12198916 is about 3492.6946617189. The cubic root of 12198916 is about 230.2009334194.

The spelling of 12198916 in words is "twelve million, one hundred ninety-eight thousand, nine hundred sixteen".