12967431 has 8 divisors (see below), whose sum is σ = 17320320. Its totient is φ = 8629752.

The previous prime is 12967429. The next prime is 12967453. The reversal of 12967431 is 13476921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12967431 - 2¹ = 12967429 is a prime.

It is a super-2 number, since 2×12967431² = 336308533479522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12967392 and 12967401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12967411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635 + ... + 5348.

It is an arithmetic number, because the mean of its divisors is an integer number (2165040).

Almost surely, 2^12967431 is an apocalyptic number.

12967431 is a deficient number, since it is larger than the sum of its proper divisors (4352889).

12967431 is an equidigital number, since it uses as much as digits as its factorization.

12967431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7605.

The product of its digits is 9072, while the sum is 33.

The square root of 12967431 is about 3601.0319354318. The cubic root of 12967431 is about 234.9369439996.

The spelling of 12967431 in words is "twelve million, nine hundred sixty-seven thousand, four hundred thirty-one".