12873771 has 6 divisors (see below), whose sum is σ = 18595460. Its totient is φ = 8582508.

The previous prime is 12873733. The next prime is 12873781. The reversal of 12873771 is 17737821.

12873771 = T₉₆₃ + T₉₆₄ + ... + T₉₈₉.

It is a happy number.

12873771 is a `hidden beast` number, since 1 + 287 + 377 + 1 = 666.

It is not a de Polignac number, because 12873771 - 2¹⁷ = 12742699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12873781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715201 + ... + 715218.

Almost surely, 2^12873771 is an apocalyptic number.

12873771 is a deficient number, since it is larger than the sum of its proper divisors (5721689).

12873771 is a wasteful number, since it uses less digits than its factorization.

12873771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430425 (or 1430422 counting only the distinct ones).

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

The square root of 12873771 is about 3588.0037625398. The cubic root of 12873771 is about 234.3699495445.

The spelling of 12873771 in words is "twelve million, eight hundred seventy-three thousand, seven hundred seventy-one".