43522879 has 4 divisors (see below), whose sum is σ = 43573384. Its totient is φ = 43472376.

The previous prime is 43522867. The next prime is 43522883. The reversal of 43522879 is 97822534.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97822534 = 2 ⋅48911267.

It is a cyclic number.

It is not a de Polignac number, because 43522879 - 2⁵ = 43522847 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 (43522889) 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, 23937 + ... + 25690.

It is an arithmetic number, because the mean of its divisors is an integer number (10893346).

Almost surely, 2^43522879 is an apocalyptic number.

43522879 is a deficient number, since it is larger than the sum of its proper divisors (50505).

43522879 is an equidigital number, since it uses as much as digits as its factorization.

43522879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50504.

The product of its digits is 120960, while the sum is 40.

The square root of 43522879 is about 6597.1872036497. The cubic root of 43522879 is about 351.7541300187.

The spelling of 43522879 in words is "forty-three million, five hundred twenty-two thousand, eight hundred seventy-nine".