12881662 has 4 divisors (see below), whose sum is σ = 19322496. Its totient is φ = 6440830.

The previous prime is 12881657. The next prime is 12881663. The reversal of 12881662 is 26618821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26618821 = 17 ⋅1565813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12881663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3220414 + ... + 3220417.

It is an arithmetic number, because the mean of its divisors is an integer number (4830624).

Almost surely, 2^12881662 is an apocalyptic number.

12881662 is a deficient number, since it is larger than the sum of its proper divisors (6440834).

12881662 is an equidigital number, since it uses as much as digits as its factorization.

12881662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440833.

The product of its digits is 9216, while the sum is 34.

The square root of 12881662 is about 3589.1032306135. The cubic root of 12881662 is about 234.4178255847.

The spelling of 12881662 in words is "twelve million, eight hundred eighty-one thousand, six hundred sixty-two".