43923 has 10 divisors (see below), whose sum is σ = 64420. Its totient is φ = 26620.

The previous prime is 43913. The next prime is 43933. The reversal of 43923 is 32934.

It is an interprime number because it is at equal distance from previous prime (43913) and next prime (43933).

It is not a de Polignac number, because 43923 - 2⁵ = 43891 is a prime.

It is a Duffinian number.

43923 is a lucky number.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 43923.

It is not an unprimeable number, because it can be changed into a prime (43913) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3988 + ... + 3998.

It is an arithmetic number, because the mean of its divisors is an integer number (6442).

2⁴³⁹²³ is an apocalyptic number.

43923 is a deficient number, since it is larger than the sum of its proper divisors (20497).

43923 is an frugal number, since it uses more digits than its factorization.

43923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47 (or 14 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 43923 is about 209.5781477158. The cubic root of 43923 is about 35.2828776300.

The spelling of 43923 in words is "forty-three thousand, nine hundred twenty-three".