12756807 has 18 divisors (see below), whose sum is σ = 21435648. Its totient is φ = 7289352.

The previous prime is 12756797. The next prime is 12756811. The reversal of 12756807 is 70865721.

12756807 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12756807 - 2¹² = 12752711 is a prime.

It is a super-2 number, since 2×12756807² = 325472249670498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12756707) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14023 + ... + 14904.

Almost surely, 2^12756807 is an apocalyptic number.

12756807 is a deficient number, since it is larger than the sum of its proper divisors (8678841).

12756807 is a wasteful number, since it uses less digits than its factorization.

12756807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28947 (or 28937 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 12756807 is about 3571.6672577383. The cubic root of 12756807 is about 233.6580035856.

The spelling of 12756807 in words is "twelve million, seven hundred fifty-six thousand, eight hundred seven".