12877985 has 8 divisors (see below), whose sum is σ = 15598656. Its totient is φ = 10205680.

The previous prime is 12877981. The next prime is 12878017. The reversal of 12877985 is 58977821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12877985 - 2² = 12877981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12877981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11501 + ... + 12570.

It is an arithmetic number, because the mean of its divisors is an integer number (1949832).

Almost surely, 2^12877985 is an apocalyptic number.

It is an amenable number.

12877985 is a deficient number, since it is larger than the sum of its proper divisors (2720671).

12877985 is a wasteful number, since it uses less digits than its factorization.

12877985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24183.

The product of its digits is 282240, while the sum is 47.

The square root of 12877985 is about 3588.5909491052. The cubic root of 12877985 is about 234.3955190332.

The spelling of 12877985 in words is "twelve million, eight hundred seventy-seven thousand, nine hundred eighty-five".