12893881 has 24 divisors (see below), whose sum is σ = 17458112. Its totient is φ = 9266400.

The previous prime is 12893879. The next prime is 12893891. The reversal of 12893881 is 18839821.

It is not a de Polignac number, because 12893881 - 2¹ = 12893879 is a prime.

It is a super-2 number, since 2×12893881² = 332504334484322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12893831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10426 + ... + 11596.

Almost surely, 2^12893881 is an apocalyptic number.

12893881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12893881 is a deficient number, since it is larger than the sum of its proper divisors (4564231).

12893881 is a wasteful number, since it uses less digits than its factorization.

12893881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213 (or 1202 counting only the distinct ones).

The product of its digits is 27648, while the sum is 40.

The square root of 12893881 is about 3590.8050629351. The cubic root of 12893881 is about 234.4919217746.

The spelling of 12893881 in words is "twelve million, eight hundred ninety-three thousand, eight hundred eighty-one".