12446631 has 6 divisors (see below), whose sum is σ = 17978480. Its totient is φ = 8297748.

The previous prime is 12446579. The next prime is 12446633. The reversal of 12446631 is 13664421.

12446631 is a `hidden beast` number, since 1 + 24 + 4 + 6 + 631 = 666.

It is not a de Polignac number, because 12446631 - 2⁷ = 12446503 is a prime.

It is a super-2 number, since 2×12446631² = 309837246500322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12446595 and 12446604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12446633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 691471 + ... + 691488.

Almost surely, 2^12446631 is an apocalyptic number.

12446631 is a deficient number, since it is larger than the sum of its proper divisors (5531849).

12446631 is a wasteful number, since it uses less digits than its factorization.

12446631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382965 (or 1382962 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 12446631 is about 3527.9783162599. The cubic root of 12446631 is about 231.7486812310.

It can be divided in two parts, 1244 and 6631, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 12446631 in words is "twelve million, four hundred forty-six thousand, six hundred thirty-one".