12772671 has 4 divisors (see below), whose sum is σ = 17030232. Its totient is φ = 8515112.

The previous prime is 12772649. The next prime is 12772691. The reversal of 12772671 is 17627721.

It is a happy number.

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 12772671 - 2⁹ = 12772159 is a prime.

It is a super-2 number, since 2×12772671² = 326282248948482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12772601) 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, 2128776 + ... + 2128781.

It is an arithmetic number, because the mean of its divisors is an integer number (4257558).

Almost surely, 2^12772671 is an apocalyptic number.

12772671 is a deficient number, since it is larger than the sum of its proper divisors (4257561).

12772671 is an equidigital number, since it uses as much as digits as its factorization.

12772671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257560.

The product of its digits is 8232, while the sum is 33.

The square root of 12772671 is about 3573.8873793112. The cubic root of 12772671 is about 233.7548202653.

The spelling of 12772671 in words is "twelve million, seven hundred seventy-two thousand, six hundred seventy-one".