12861764 has 12 divisors (see below), whose sum is σ = 22890000. Its totient is φ = 6321768.

The previous prime is 12861743. The next prime is 12861767. The reversal of 12861764 is 46716821.

It is not an unprimeable number, because it can be changed into a prime (12861767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27014 + ... + 27485.

It is an arithmetic number, because the mean of its divisors is an integer number (1907500).

Almost surely, 2^12861764 is an apocalyptic number.

It is an amenable number.

12861764 is a deficient number, since it is larger than the sum of its proper divisors (10028236).

12861764 is a wasteful number, since it uses less digits than its factorization.

12861764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54562 (or 54560 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 12861764 is about 3586.3301576960. The cubic root of 12861764 is about 234.2970634852.

The spelling of 12861764 in words is "twelve million, eight hundred sixty-one thousand, seven hundred sixty-four".