12889798 has 16 divisors (see below), whose sum is σ = 20436480. Its totient is φ = 6084936.

The previous prime is 12889787. The next prime is 12889819. The reversal of 12889798 is 89798821.

12889798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12889798² = 332293784961608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1861 + ... + 5407.

It is an arithmetic number, because the mean of its divisors is an integer number (1277280).

Almost surely, 2^12889798 is an apocalyptic number.

12889798 is a deficient number, since it is larger than the sum of its proper divisors (7546682).

12889798 is a wasteful number, since it uses less digits than its factorization.

12889798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651.

The product of its digits is 580608, while the sum is 52.

The square root of 12889798 is about 3590.2364824618. The cubic root of 12889798 is about 234.4671676142.

The spelling of 12889798 in words is "twelve million, eight hundred eighty-nine thousand, seven hundred ninety-eight".