43437 has 4 divisors (see below), whose sum is σ = 57920. Its totient is φ = 28956.

The previous prime is 43427. The next prime is 43441. The reversal of 43437 is 73434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43437 - 2¹¹ = 41389 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 43437.

It is not an unprimeable number, because it can be changed into a prime (43427) 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, 7237 + ... + 7242.

It is an arithmetic number, because the mean of its divisors is an integer number (14480).

2⁴³⁴³⁷ is an apocalyptic number.

It is an amenable number.

43437 is a deficient number, since it is larger than the sum of its proper divisors (14483).

43437 is a wasteful number, since it uses less digits than its factorization.

43437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14482.

The product of its digits is 1008, while the sum is 21.

The square root of 43437 is about 208.4154504829. The cubic root of 43437 is about 35.1522618192.

The spelling of 43437 in words is "forty-three thousand, four hundred thirty-seven".