43117983 has 12 divisors (see below), whose sum is σ = 64429560. Its totient is φ = 27753936.

The previous prime is 43117951. The next prime is 43117999. The reversal of 43117983 is 38971134.

It is a happy number.

It is not a de Polignac number, because 43117983 - 2⁵ = 43117951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43117583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82341 + ... + 82862.

It is an arithmetic number, because the mean of its divisors is an integer number (5369130).

Almost surely, 2^43117983 is an apocalyptic number.

43117983 is a deficient number, since it is larger than the sum of its proper divisors (21311577).

43117983 is a wasteful number, since it uses less digits than its factorization.

43117983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165238 (or 165235 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 43117983 is about 6566.4284812979. The cubic root of 43117983 is about 350.6599331300.

It can be divided in two parts, 43117 and 983, that added together give a square (44100 = 210²).

The spelling of 43117983 in words is "forty-three million, one hundred seventeen thousand, nine hundred eighty-three".