12634757 has 4 divisors (see below), whose sum is σ = 13377996. Its totient is φ = 11891520.

The previous prime is 12634729. The next prime is 12634777. The reversal of 12634757 is 75743621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75743621 = 29 ⋅2611849.

It can be written as a sum of positive squares in 2 ways, for example, as 5527201 + 7107556 = 2351^2 + 2666^2 .

It is a cyclic number.

It is not a de Polignac number, because 12634757 - 2⁶ = 12634693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12634717) 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, 371594 + ... + 371627.

It is an arithmetic number, because the mean of its divisors is an integer number (3344499).

Almost surely, 2^12634757 is an apocalyptic number.

12634757 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12634757 is a deficient number, since it is larger than the sum of its proper divisors (743239).

12634757 is an equidigital number, since it uses as much as digits as its factorization.

12634757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743238.

The product of its digits is 35280, while the sum is 35.

The square root of 12634757 is about 3554.5403359647. The cubic root of 12634757 is about 232.9104446857.

The spelling of 12634757 in words is "twelve million, six hundred thirty-four thousand, seven hundred fifty-seven".