444023197 has 2 divisors, whose sum is σ = 444023198. Its totient is φ = 444023196.

The previous prime is 444023183. The next prime is 444023231. The reversal of 444023197 is 791320444.

It is a happy number.

It is an a-pointer prime, because the next prime (444023231) can be obtained adding 444023197 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411521796 + 32501401 = 20286^2 + 5701^2 .

It is a cyclic number.

It is not a de Polignac number, because 444023197 - 2¹⁵ = 443990429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444023297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222011598 + 222011599.

It is an arithmetic number, because the mean of its divisors is an integer number (222011599).

Almost surely, 2^444023197 is an apocalyptic number.

It is an amenable number.

444023197 is a deficient number, since it is larger than the sum of its proper divisors (1).

444023197 is an equidigital number, since it uses as much as digits as its factorization.

444023197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 444023197 is about 21071.8579389668. The cubic root of 444023197 is about 762.9016481808.

The spelling of 444023197 in words is "four hundred forty-four million, twenty-three thousand, one hundred ninety-seven".