12849987 has 16 divisors (see below), whose sum is σ = 17879040. Its totient is φ = 8199072.

The previous prime is 12849973. The next prime is 12850039. The reversal of 12849987 is 78994821.

It is not a de Polignac number, because 12849987 - 2⁶ = 12849923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12849937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10468 + ... + 11630.

It is an arithmetic number, because the mean of its divisors is an integer number (1117440).

Almost surely, 2^12849987 is an apocalyptic number.

12849987 is a deficient number, since it is larger than the sum of its proper divisors (5029053).

12849987 is a wasteful number, since it uses less digits than its factorization.

12849987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322.

The product of its digits is 290304, while the sum is 48.

The square root of 12849987 is about 3584.6878525194. The cubic root of 12849987 is about 234.2255295146.

The spelling of 12849987 in words is "twelve million, eight hundred forty-nine thousand, nine hundred eighty-seven".