32223749 has 2 divisors, whose sum is σ = 32223750. Its totient is φ = 32223748.

The previous prime is 32223743. The next prime is 32223803. The reversal of 32223749 is 94732223.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27352900 + 4870849 = 5230^2 + 2207^2 .

It is a cyclic number.

It is not a de Polignac number, because 32223749 - 2¹⁶ = 32158213 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32223743) 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 as a sum of consecutive naturals, namely, 16111874 + 16111875.

It is an arithmetic number, because the mean of its divisors is an integer number (16111875).

Almost surely, 2^32223749 is an apocalyptic number.

It is an amenable number.

32223749 is a deficient number, since it is larger than the sum of its proper divisors (1).

32223749 is an equidigital number, since it uses as much as digits as its factorization.

32223749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 32223749 is about 5676.5966035997. The cubic root of 32223749 is about 318.2184495092.

The spelling of 32223749 in words is "thirty-two million, two hundred twenty-three thousand, seven hundred forty-nine".