12706634 has 4 divisors (see below), whose sum is σ = 19059954. Its totient is φ = 6353316.

The previous prime is 12706627. The next prime is 12706637. The reversal of 12706634 is 43660721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9591409 + 3115225 = 3097^2 + 1765^2 .

It is a super-2 number, since 2×12706634² = 322917095219912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12706597 and 12706606.

It is not an unprimeable number, because it can be changed into a prime (12706637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3176657 + ... + 3176660.

Almost surely, 2^12706634 is an apocalyptic number.

12706634 is a deficient number, since it is larger than the sum of its proper divisors (6353320).

12706634 is an equidigital number, since it uses as much as digits as its factorization.

12706634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6353319.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 12706634 is about 3564.6365873676. The cubic root of 12706634 is about 233.3512725437.

The spelling of 12706634 in words is "twelve million, seven hundred six thousand, six hundred thirty-four".