43222723 has 4 divisors (see below), whose sum is σ = 43289568. Its totient is φ = 43155880.

The previous prime is 43222703. The next prime is 43222747. The reversal of 43222723 is 32722234.

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

It is a cyclic number.

It is not a de Polignac number, because 43222723 - 2²¹ = 41125571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43222703) 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, 32443 + ... + 33748.

It is an arithmetic number, because the mean of its divisors is an integer number (10822392).

Almost surely, 2^43222723 is an apocalyptic number.

43222723 is a deficient number, since it is larger than the sum of its proper divisors (66845).

43222723 is an equidigital number, since it uses as much as digits as its factorization.

43222723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66844.

The product of its digits is 4032, while the sum is 25.

The square root of 43222723 is about 6574.3990599902. The cubic root of 43222723 is about 350.9436385939.

Adding to 43222723 its reverse (32722234), we get a palindrome (75944957).

The spelling of 43222723 in words is "forty-three million, two hundred twenty-two thousand, seven hundred twenty-three".