12775983 has 8 divisors (see below), whose sum is σ = 18583296. Its totient is φ = 7743000.

The previous prime is 12775981. The next prime is 12775991. The reversal of 12775983 is 38957721.

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

It is not a de Polignac number, because 12775983 - 2¹ = 12775981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12775981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193543 + ... + 193608.

It is an arithmetic number, because the mean of its divisors is an integer number (2322912).

Almost surely, 2^12775983 is an apocalyptic number.

12775983 is a deficient number, since it is larger than the sum of its proper divisors (5807313).

12775983 is a wasteful number, since it uses less digits than its factorization.

12775983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387165.

The product of its digits is 105840, while the sum is 42.

The square root of 12775983 is about 3574.3507102689. The cubic root of 12775983 is about 233.7750230106.

It can be divided in two parts, 1277598 and 3, that added together give a triangular number (1277601 = T₁₅₉₈).

The spelling of 12775983 in words is "twelve million, seven hundred seventy-five thousand, nine hundred eighty-three".