12990898 has 16 divisors (see below), whose sum is σ = 20465280. Its totient is φ = 6176016.

The previous prime is 12990871. The next prime is 12990899. The reversal of 12990898 is 89809921.

It is a happy number.

12990898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12990899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215 + ... + 5557.

It is an arithmetic number, because the mean of its divisors is an integer number (1279080).

Almost surely, 2^12990898 is an apocalyptic number.

12990898 is a deficient number, since it is larger than the sum of its proper divisors (7474382).

12990898 is a wasteful number, since it uses less digits than its factorization.

12990898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441.

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 12990898 is about 3604.2888341530. The cubic root of 12990898 is about 235.0785794256.

The spelling of 12990898 in words is "twelve million, nine hundred ninety thousand, eight hundred ninety-eight".