12771868 has 6 divisors (see below), whose sum is σ = 22350776. Its totient is φ = 6385932.

The previous prime is 12771853. The next prime is 12771883. The reversal of 12771868 is 86817721.

It is an interprime number because it is at equal distance from previous prime (12771853) and next prime (12771883).

It is a super-2 number, since 2×12771868² = 326241224418848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12771868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1596480 + ... + 1596487.

Almost surely, 2^12771868 is an apocalyptic number.

It is an amenable number.

12771868 is a deficient number, since it is larger than the sum of its proper divisors (9578908).

12771868 is a wasteful number, since it uses less digits than its factorization.

12771868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192971 (or 3192969 counting only the distinct ones).

The product of its digits is 37632, while the sum is 40.

The square root of 12771868 is about 3573.7750348896. The cubic root of 12771868 is about 233.7499215495.

The spelling of 12771868 in words is "twelve million, seven hundred seventy-one thousand, eight hundred sixty-eight".