43223213 has 8 divisors (see below), whose sum is σ = 48249696. Its totient is φ = 38379600.

The previous prime is 43223209. The next prime is 43223237. The reversal of 43223213 is 31232234.

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 43223213 - 2² = 43223209 is a prime.

It is a super-2 number, since 2×43223213² = 3736492284086738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43223203) 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, 45218 + ... + 46163.

It is an arithmetic number, because the mean of its divisors is an integer number (6031212).

Almost surely, 2^43223213 is an apocalyptic number.

43223213 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

43223213 is a deficient number, since it is larger than the sum of its proper divisors (5026483).

43223213 is a wasteful number, since it uses less digits than its factorization.

43223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91435.

The product of its digits is 864, while the sum is 20.

The square root of 43223213 is about 6574.4363256480. The cubic root of 43223213 is about 350.9449647615.

Adding to 43223213 its reverse (31232234), we get a palindrome (74455447).

The spelling of 43223213 in words is "forty-three million, two hundred twenty-three thousand, two hundred thirteen".