12965887 has 4 divisors (see below), whose sum is σ = 14144616. Its totient is φ = 11787160.

The previous prime is 12965879. The next prime is 12965921. The reversal of 12965887 is 78856921.

12965887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12965887 - 2³ = 12965879 is a prime.

It is a super-2 number, since 2×12965887² = 336228451393538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12965287) 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, 589348 + ... + 589369.

It is an arithmetic number, because the mean of its divisors is an integer number (3536154).

Almost surely, 2^12965887 is an apocalyptic number.

12965887 is a deficient number, since it is larger than the sum of its proper divisors (1178729).

12965887 is a wasteful number, since it uses less digits than its factorization.

12965887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178728.

The product of its digits is 241920, while the sum is 46.

The square root of 12965887 is about 3600.8175460581. The cubic root of 12965887 is about 234.9276191755.

The spelling of 12965887 in words is "twelve million, nine hundred sixty-five thousand, eight hundred eighty-seven".