12861802 has 4 divisors (see below), whose sum is σ = 19292706. Its totient is φ = 6430900.

The previous prime is 12861791. The next prime is 12861817. The reversal of 12861802 is 20816821.

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

It can be written as a sum of positive squares in only one way, i.e., 11095561 + 1766241 = 3331^2 + 1329^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215449 + ... + 3215452.

Almost surely, 2^12861802 is an apocalyptic number.

12861802 is a deficient number, since it is larger than the sum of its proper divisors (6430904).

12861802 is an equidigital number, since it uses as much as digits as its factorization.

12861802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430903.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 12861802 is about 3586.3354555869. The cubic root of 12861802 is about 234.2972942281.

The spelling of 12861802 in words is "twelve million, eight hundred sixty-one thousand, eight hundred two".