12986875 has 20 divisors (see below), whose sum is σ = 17713080. Its totient is φ = 9440000.

The previous prime is 12986863. The next prime is 12986879. The reversal of 12986875 is 57868921.

It is not a de Polignac number, because 12986875 - 2¹³ = 12978683 is a prime.

Its product of digits (241920) is a multiple of the sum of its prime factors (1920).

It is not an unprimeable number, because it can be changed into a prime (12986879) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5931 + ... + 7819.

It is an arithmetic number, because the mean of its divisors is an integer number (885654).

Almost surely, 2^12986875 is an apocalyptic number.

12986875 is a deficient number, since it is larger than the sum of its proper divisors (4726205).

12986875 is an equidigital number, since it uses as much as digits as its factorization.

12986875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920 (or 1905 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 12986875 is about 3603.7307058103. The cubic root of 12986875 is about 235.0543106705.

It can be divided in two parts, 12986 and 875, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 12986875 in words is "twelve million, nine hundred eighty-six thousand, eight hundred seventy-five".