12671761 has 4 divisors (see below), whose sum is σ = 12768624. Its totient is φ = 12574900.

The previous prime is 12671759. The next prime is 12671779. The reversal of 12671761 is 16717621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12671761 - 2¹ = 12671759 is a prime.

It is a super-2 number, since 2×12671761² = 321147053682242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12671741) 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, 48235 + ... + 48496.

It is an arithmetic number, because the mean of its divisors is an integer number (3192156).

Almost surely, 2^12671761 is an apocalyptic number.

It is an amenable number.

12671761 is a deficient number, since it is larger than the sum of its proper divisors (96863).

12671761 is an equidigital number, since it uses as much as digits as its factorization.

12671761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96862.

The product of its digits is 3528, while the sum is 31.

The square root of 12671761 is about 3559.7417041128. The cubic root of 12671761 is about 233.1376016160.

It can be divided in two parts, 1 and 2671761, that added together give a palindrome (2671762).

The spelling of 12671761 in words is "twelve million, six hundred seventy-one thousand, seven hundred sixty-one".