12824861 has 4 divisors (see below), whose sum is σ = 14656992. Its totient is φ = 10992732.

The previous prime is 12824857. The next prime is 12824863. The reversal of 12824861 is 16842821.

It is a happy number.

12824861 is digitally balanced in base 2 and base 3, because in such bases 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 a cyclic number.

It is not a de Polignac number, because 12824861 - 2² = 12824857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12824863) 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, 916055 + ... + 916068.

It is an arithmetic number, because the mean of its divisors is an integer number (3664248).

Almost surely, 2^12824861 is an apocalyptic number.

It is an amenable number.

12824861 is a deficient number, since it is larger than the sum of its proper divisors (1832131).

12824861 is an equidigital number, since it uses as much as digits as its factorization.

12824861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832130.

The product of its digits is 6144, while the sum is 32.

The square root of 12824861 is about 3581.1815089437. The cubic root of 12824861 is about 234.0727669571.

The spelling of 12824861 in words is "twelve million, eight hundred twenty-four thousand, eight hundred sixty-one".