12872775 has 12 divisors (see below), whose sum is σ = 21283112. Its totient is φ = 6865440.

The previous prime is 12872767. The next prime is 12872807. The reversal of 12872775 is 57727821.

It is not a de Polignac number, because 12872775 - 2³ = 12872767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 85744 + ... + 85893.

Almost surely, 2^12872775 is an apocalyptic number.

12872775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12872775 is a deficient number, since it is larger than the sum of its proper divisors (8410337).

12872775 is a wasteful number, since it uses less digits than its factorization.

12872775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171650 (or 171645 counting only the distinct ones).

The product of its digits is 54880, while the sum is 39.

The square root of 12872775 is about 3587.8649640141. The cubic root of 12872775 is about 234.3639052526.

The spelling of 12872775 in words is "twelve million, eight hundred seventy-two thousand, seven hundred seventy-five".