44437213 has 2 divisors, whose sum is σ = 44437214. Its totient is φ = 44437212.

The previous prime is 44437177. The next prime is 44437241. The reversal of 44437213 is 31273444.

It is an a-pointer prime, because the next prime (44437241) can be obtained adding 44437213 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41757444 + 2679769 = 6462^2 + 1637^2 .

It is a cyclic number.

It is not a de Polignac number, because 44437213 - 2⁹ = 44436701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44437243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22218606 + 22218607.

It is an arithmetic number, because the mean of its divisors is an integer number (22218607).

Almost surely, 2^44437213 is an apocalyptic number.

It is an amenable number.

44437213 is a deficient number, since it is larger than the sum of its proper divisors (1).

44437213 is an equidigital number, since it uses as much as digits as its factorization.

44437213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 28.

The square root of 44437213 is about 6666.1242862701. The cubic root of 44437213 is about 354.2003106278.

The spelling of 44437213 in words is "forty-four million, four hundred thirty-seven thousand, two hundred thirteen".