43379873 has 4 divisors (see below), whose sum is σ = 44552340. Its totient is φ = 42207408.

The previous prime is 43379857. The next prime is 43379879. The reversal of 43379873 is 37897334.

43379873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22877089 + 20502784 = 4783^2 + 4528^2 .

It is a cyclic number.

It is not a de Polignac number, because 43379873 - 2⁴ = 43379857 is a prime.

It is a super-2 number, since 2×43379873² = 3763626762992258, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43379879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586178 + ... + 586251.

It is an arithmetic number, because the mean of its divisors is an integer number (11138085).

Almost surely, 2^43379873 is an apocalyptic number.

It is an amenable number.

43379873 is a deficient number, since it is larger than the sum of its proper divisors (1172467).

43379873 is a wasteful number, since it uses less digits than its factorization.

43379873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172466.

The product of its digits is 381024, while the sum is 44.

The square root of 43379873 is about 6586.3398788705. The cubic root of 43379873 is about 351.3684466904.

The spelling of 43379873 in words is "forty-three million, three hundred seventy-nine thousand, eight hundred seventy-three".