43213313 has 8 divisors (see below), whose sum is σ = 50768256. Its totient is φ = 36262800.

The previous prime is 43213301. The next prime is 43213319. The reversal of 43213313 is 31331234.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43213313 - 2⁶ = 43213249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43213319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150953 + ... + 151238.

It is an arithmetic number, because the mean of its divisors is an integer number (6346032).

Almost surely, 2^43213313 is an apocalyptic number.

It is an amenable number.

43213313 is a deficient number, since it is larger than the sum of its proper divisors (7554943).

43213313 is a wasteful number, since it uses less digits than its factorization.

43213313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302215.

The product of its digits is 648, while the sum is 20.

The square root of 43213313 is about 6573.6833662719. The cubic root of 43213313 is about 350.9181688171.

Adding to 43213313 its reverse (31331234), we get a palindrome (74544547).

The spelling of 43213313 in words is "forty-three million, two hundred thirteen thousand, three hundred thirteen".