12653889 has 16 divisors (see below), whose sum is σ = 17929920. Its totient is φ = 7922880.

The previous prime is 12653863. The next prime is 12653903. The reversal of 12653889 is 98835621.

It is not a de Polignac number, because 12653889 - 2⁷ = 12653761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12653889.

It is not an unprimeable number, because it can be changed into a prime (12653819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1254 + ... + 5184.

It is an arithmetic number, because the mean of its divisors is an integer number (1120620).

Almost surely, 2^12653889 is an apocalyptic number.

It is an amenable number.

12653889 is a deficient number, since it is larger than the sum of its proper divisors (5276031).

12653889 is a wasteful number, since it uses less digits than its factorization.

12653889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000.

The product of its digits is 103680, while the sum is 42.

The square root of 12653889 is about 3557.2305238767. The cubic root of 12653889 is about 233.0279458336.

The spelling of 12653889 in words is "twelve million, six hundred fifty-three thousand, eight hundred eighty-nine".