44672213 has 2 divisors, whose sum is σ = 44672214. Its totient is φ = 44672212.

The previous prime is 44672203. The next prime is 44672219. The reversal of 44672213 is 31227644.

44672213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30217009 + 14455204 = 5497^2 + 3802^2 .

It is a cyclic number.

It is not a de Polignac number, because 44672213 - 2⁴ = 44672197 is a prime.

It is a super-2 number, since 2×44672213² = 3991213228634738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44672219) 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, 22336106 + 22336107.

It is an arithmetic number, because the mean of its divisors is an integer number (22336107).

Almost surely, 2^44672213 is an apocalyptic number.

It is an amenable number.

44672213 is a deficient number, since it is larger than the sum of its proper divisors (1).

44672213 is an equidigital number, since it uses as much as digits as its factorization.

44672213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 29.

The square root of 44672213 is about 6683.7274779871. The cubic root of 44672213 is about 354.8235928407.

Adding to 44672213 its reverse (31227644), we get a palindrome (75899857).

The spelling of 44672213 in words is "forty-four million, six hundred seventy-two thousand, two hundred thirteen".