12881870 has 8 divisors (see below), whose sum is σ = 23187384. Its totient is φ = 5152744.

The previous prime is 12881839. The next prime is 12881899. The reversal of 12881870 is 7818821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12881870.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644084 + ... + 644103.

It is an arithmetic number, because the mean of its divisors is an integer number (2898423).

Almost surely, 2^12881870 is an apocalyptic number.

12881870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12881870 is a deficient number, since it is larger than the sum of its proper divisors (10305514).

12881870 is a wasteful number, since it uses less digits than its factorization.

12881870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288194.

The product of its (nonzero) digits is 7168, while the sum is 35.

The square root of 12881870 is about 3589.1322070941. The cubic root of 12881870 is about 234.4190872916.

The spelling of 12881870 in words is "twelve million, eight hundred eighty-one thousand, eight hundred seventy".