12883865 has 4 divisors (see below), whose sum is σ = 15460644. Its totient is φ = 10307088.

The previous prime is 12883861. The next prime is 12883903. The reversal of 12883865 is 56838821.

12883865 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.

It can be written as a sum of positive squares in 2 ways, for example, as 5326864 + 7557001 = 2308^2 + 2749^2 .

It is a cyclic number.

It is not a de Polignac number, because 12883865 - 2² = 12883861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12883861) 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, 1288382 + ... + 1288391.

It is an arithmetic number, because the mean of its divisors is an integer number (3865161).

Almost surely, 2^12883865 is an apocalyptic number.

It is an amenable number.

12883865 is a deficient number, since it is larger than the sum of its proper divisors (2576779).

12883865 is an equidigital number, since it uses as much as digits as its factorization.

12883865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576778.

The product of its digits is 92160, while the sum is 41.

The square root of 12883865 is about 3589.4101186685. The cubic root of 12883865 is about 234.4311880694.

The spelling of 12883865 in words is "twelve million, eight hundred eighty-three thousand, eight hundred sixty-five".