12735889 has 4 divisors (see below), whose sum is σ = 12855024. Its totient is φ = 12616756.

The previous prime is 12735883. The next prime is 12735893. The reversal of 12735889 is 98853721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98853721 = 29 ⋅3408749.

It is a cyclic number.

It is not a de Polignac number, because 12735889 - 2¹¹ = 12733841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12735883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59407 + ... + 59620.

It is an arithmetic number, because the mean of its divisors is an integer number (3213756).

Almost surely, 2^12735889 is an apocalyptic number.

It is an amenable number.

12735889 is a deficient number, since it is larger than the sum of its proper divisors (119135).

12735889 is a wasteful number, since it uses less digits than its factorization.

12735889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119134.

The product of its digits is 120960, while the sum is 43.

The square root of 12735889 is about 3568.7377320280. The cubic root of 12735889 is about 233.5302199881.

The spelling of 12735889 in words is "twelve million, seven hundred thirty-five thousand, eight hundred eighty-nine".