12895861 has 4 divisors (see below), whose sum is σ = 14068224. Its totient is φ = 11723500.

The previous prime is 12895849. The next prime is 12895873. The reversal of 12895861 is 16859821.

12895861 is digitally balanced in base 2, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12895849) and next prime (12895873).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12895861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12895891) 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, 586165 + ... + 586186.

It is an arithmetic number, because the mean of its divisors is an integer number (3517056).

Almost surely, 2^12895861 is an apocalyptic number.

12895861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12895861 is a deficient number, since it is larger than the sum of its proper divisors (1172363).

12895861 is a wasteful number, since it uses less digits than its factorization.

12895861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172362.

The product of its digits is 34560, while the sum is 40.

The square root of 12895861 is about 3591.0807565411. The cubic root of 12895861 is about 234.5039241148.

The spelling of 12895861 in words is "twelve million, eight hundred ninety-five thousand, eight hundred sixty-one".