12827381 has 16 divisors (see below), whose sum is σ = 15138816. Its totient is φ = 10641456.

The previous prime is 12827363. The next prime is 12827387. The reversal of 12827381 is 18372821.

It is not a de Polignac number, because 12827381 - 2⁶ = 12827317 is a prime.

It is a super-2 number, since 2×12827381² = 329083406638322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12827387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41630 + ... + 41936.

It is an arithmetic number, because the mean of its divisors is an integer number (946176).

Almost surely, 2^12827381 is an apocalyptic number.

It is an amenable number.

12827381 is a deficient number, since it is larger than the sum of its proper divisors (2311435).

12827381 is a wasteful number, since it uses less digits than its factorization.

12827381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488.

The product of its digits is 5376, while the sum is 32.

The square root of 12827381 is about 3581.5333308515. The cubic root of 12827381 is about 234.0880972010.

The spelling of 12827381 in words is "twelve million, eight hundred twenty-seven thousand, three hundred eighty-one".