12763631 has 4 divisors (see below), whose sum is σ = 13108632. Its totient is φ = 12418632.

The previous prime is 12763613. The next prime is 12763633. The reversal of 12763631 is 13636721.

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 12763631 - 2¹⁴ = 12747247 is a prime.

It is a super-2 number, since 2×12763631² = 325820552608322, 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 = 12763594 and 12763603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12763633) 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 3 ways as a sum of consecutive naturals, for example, 172445 + ... + 172518.

It is an arithmetic number, because the mean of its divisors is an integer number (3277158).

Almost surely, 2^12763631 is an apocalyptic number.

12763631 is a deficient number, since it is larger than the sum of its proper divisors (345001).

12763631 is an equidigital number, since it uses as much as digits as its factorization.

12763631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345000.

The product of its digits is 4536, while the sum is 29.

The square root of 12763631 is about 3572.6224261738. The cubic root of 12763631 is about 233.6996597249.

The spelling of 12763631 in words is "twelve million, seven hundred sixty-three thousand, six hundred thirty-one".