43679 has 4 divisors (see below), whose sum is σ = 45120. Its totient is φ = 42240.

The previous prime is 43669. The next prime is 43691. The reversal of 43679 is 97634.

43679 = T₂ + T₃ + ... + T₆₃.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97634 = 2 ⋅48817.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43609) 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, 674 + ... + 735.

It is an arithmetic number, because the mean of its divisors is an integer number (11280).

2⁴³⁶⁷⁹ is an apocalyptic number.

43679 is a deficient number, since it is larger than the sum of its proper divisors (1441).

43679 is a wasteful number, since it uses less digits than its factorization.

43679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440.

The product of its digits is 4536, while the sum is 29.

The square root of 43679 is about 208.9952152562. The cubic root of 43679 is about 35.2174220746.

It can be divided in two parts, 436 and 79, that added together give a palindrome (515).

The spelling of 43679 in words is "forty-three thousand, six hundred seventy-nine".