12757983 has 24 divisors (see below), whose sum is σ = 20136960. Its totient is φ = 7161840.

The previous prime is 12757981. The next prime is 12757993. The reversal of 12757983 is 38975721.

It is not a de Polignac number, because 12757983 - 2¹ = 12757981 is a prime.

It is a super-2 number, since 2×12757983² = 325532260456578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12757981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7938 + ... + 9408.

It is an arithmetic number, because the mean of its divisors is an integer number (839040).

Almost surely, 2^12757983 is an apocalyptic number.

12757983 is a deficient number, since it is larger than the sum of its proper divisors (7378977).

12757983 is a wasteful number, since it uses less digits than its factorization.

12757983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547 (or 1540 counting only the distinct ones).

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

The square root of 12757983 is about 3571.8318829419. The cubic root of 12757983 is about 233.6651833699.

The spelling of 12757983 in words is "twelve million, seven hundred fifty-seven thousand, nine hundred eighty-three".