12867975 has 18 divisors (see below), whose sum is σ = 23048376. Its totient is φ = 6862800.

The previous prime is 12867941. The next prime is 12867977. The reversal of 12867975 is 57976821.

It is not a de Polignac number, because 12867975 - 2⁷ = 12867847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12867975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12867977) 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 in 17 ways as a sum of consecutive naturals, for example, 28371 + ... + 28820.

Almost surely, 2^12867975 is an apocalyptic number.

12867975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12867975 is a deficient number, since it is larger than the sum of its proper divisors (10180401).

12867975 is a wasteful number, since it uses less digits than its factorization.

12867975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57207 (or 57199 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 12867975 is about 3587.1959801494. The cubic root of 12867975 is about 234.3347717623.

It can be divided in two parts, 1286 and 7975, that added together give a cube (9261 = 21³).

The spelling of 12867975 in words is "twelve million, eight hundred sixty-seven thousand, nine hundred seventy-five".