12807975 has 12 divisors (see below), whose sum is σ = 21175976. Its totient is φ = 6830880.

The previous prime is 12807973. The next prime is 12807983. The reversal of 12807975 is 57970821.

It is not a de Polignac number, because 12807975 - 2¹ = 12807973 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 (12807973) 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, 85312 + ... + 85461.

Almost surely, 2^12807975 is an apocalyptic number.

12807975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12807975 is a deficient number, since it is larger than the sum of its proper divisors (8368001).

12807975 is a wasteful number, since it uses less digits than its factorization.

12807975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170786 (or 170781 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 12807975 is about 3578.8231305836. The cubic root of 12807975 is about 233.9699903074.

The spelling of 12807975 in words is "twelve million, eight hundred seven thousand, nine hundred seventy-five".