12871377 has 12 divisors (see below), whose sum is σ = 18854784. Its totient is φ = 8459640.

The previous prime is 12871367. The next prime is 12871387. The reversal of 12871377 is 77317821.

It is a happy number.

12871377 is a `hidden beast` number, since 1 + 287 + 1 + 377 = 666.

It is an interprime number because it is at equal distance from previous prime (12871367) and next prime (12871387).

It is not a de Polignac number, because 12871377 - 2⁴ = 12871361 is a prime.

It is a super-2 number, since 2×12871377² = 331344691752258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12871307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9433 + ... + 10710.

It is an arithmetic number, because the mean of its divisors is an integer number (1571232).

Almost surely, 2^12871377 is an apocalyptic number.

It is an amenable number.

12871377 is a deficient number, since it is larger than the sum of its proper divisors (5983407).

12871377 is a wasteful number, since it uses less digits than its factorization.

12871377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20220 (or 20217 counting only the distinct ones).

The product of its digits is 16464, while the sum is 36.

The square root of 12871377 is about 3587.6701353385. The cubic root of 12871377 is about 234.3554208711.

The spelling of 12871377 in words is "twelve million, eight hundred seventy-one thousand, three hundred seventy-seven".