12277871 has 4 divisors (see below), whose sum is σ = 12356232. Its totient is φ = 12199512.

The previous prime is 12277861. The next prime is 12277873. The reversal of 12277871 is 17877221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12277871 - 2⁶ = 12277807 is a prime.

It is a super-3 number, since 3×12277871³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38945 + ... + 39258.

It is an arithmetic number, because the mean of its divisors is an integer number (3089058).

Almost surely, 2^12277871 is an apocalyptic number.

12277871 is a deficient number, since it is larger than the sum of its proper divisors (78361).

12277871 is an equidigital number, since it uses as much as digits as its factorization.

12277871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78360.

The product of its digits is 10976, while the sum is 35.

The square root of 12277871 is about 3503.9793092996. The cubic root of 12277871 is about 230.6965086725.

The spelling of 12277871 in words is "twelve million, two hundred seventy-seven thousand, eight hundred seventy-one".