43799 has 4 divisors (see below), whose sum is σ = 50064. Its totient is φ = 37536.

The previous prime is 43793. The next prime is 43801. The reversal of 43799 is 99734.

43799 = T₇₂ + T₇₃ + ... + T₈₅.

It is a happy number.

43799 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43799 - 2⁴ = 43783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3122 + ... + 3135.

It is an arithmetic number, because the mean of its divisors is an integer number (12516).

2⁴³⁷⁹⁹ is an apocalyptic number.

43799 is a deficient number, since it is larger than the sum of its proper divisors (6265).

43799 is an equidigital number, since it uses as much as digits as its factorization.

43799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6264.

The product of its digits is 6804, while the sum is 32.

The square root of 43799 is about 209.2821062585. The cubic root of 43799 is about 35.2496437098.

The spelling of 43799 in words is "forty-three thousand, seven hundred ninety-nine".