444675397 has 2 divisors, whose sum is σ = 444675398. Its totient is φ = 444675396.

The previous prime is 444675359. The next prime is 444675457. The reversal of 444675397 is 793576444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314920516 + 129754881 = 17746^2 + 11391^2 .

It is a cyclic number.

It is not a de Polignac number, because 444675397 - 2⁷ = 444675269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444675397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444675337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222337698 + 222337699.

It is an arithmetic number, because the mean of its divisors is an integer number (222337699).

Almost surely, 2^444675397 is an apocalyptic number.

It is an amenable number.

444675397 is a deficient number, since it is larger than the sum of its proper divisors (1).

444675397 is an equidigital number, since it uses as much as digits as its factorization.

444675397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 49.

The square root of 444675397 is about 21087.3278771873. The cubic root of 444675397 is about 763.2749928186.

The spelling of 444675397 in words is "four hundred forty-four million, six hundred seventy-five thousand, three hundred ninety-seven".