43853 has 2 divisors, whose sum is σ = 43854. Its totient is φ = 43852.

The previous prime is 43801. The next prime is 43867. The reversal of 43853 is 35834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29929 + 13924 = 173^2 + 118^2 .

43853 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 43853 - 2⁶ = 43789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21926 + 21927.

It is an arithmetic number, because the mean of its divisors is an integer number (21927).

2⁴³⁸⁵³ is an apocalyptic number.

It is an amenable number.

43853 is a deficient number, since it is larger than the sum of its proper divisors (1).

43853 is an equidigital number, since it uses as much as digits as its factorization.

43853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 43853 is about 209.4110789810. The cubic root of 43853 is about 35.2641242461.

The spelling of 43853 in words is "forty-three thousand, eight hundred fifty-three".