12707757 has 12 divisors (see below), whose sum is σ = 18702684. Its totient is φ = 8311680.

The previous prime is 12707749. The next prime is 12707777. The reversal of 12707757 is 75770721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4447881 + 8259876 = 2109^2 + 2874^2 .

It is not a de Polignac number, because 12707757 - 2³ = 12707749 is a prime.

It is a super-2 number, since 2×12707757² = 322974175942098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12707777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12844 + ... + 13797.

It is an arithmetic number, because the mean of its divisors is an integer number (1558557).

Almost surely, 2^12707757 is an apocalyptic number.

It is an amenable number.

12707757 is a deficient number, since it is larger than the sum of its proper divisors (5994927).

12707757 is a wasteful number, since it uses less digits than its factorization.

12707757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26700 (or 26697 counting only the distinct ones).

The product of its (nonzero) digits is 24010, while the sum is 36.

The square root of 12707757 is about 3564.7941034511. The cubic root of 12707757 is about 233.3581467943.

The spelling of 12707757 in words is "twelve million, seven hundred seven thousand, seven hundred fifty-seven".