441385397 has 2 divisors, whose sum is σ = 441385398. Its totient is φ = 441385396.

The previous prime is 441385369. The next prime is 441385493. The reversal of 441385397 is 793583144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441042001 + 343396 = 21001^2 + 586^2 .

It is a cyclic number.

It is not a de Polignac number, because 441385397 - 2¹⁰ = 441384373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (441385697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220692698 + 220692699.

It is an arithmetic number, because the mean of its divisors is an integer number (220692699).

Almost surely, 2^441385397 is an apocalyptic number.

It is an amenable number.

441385397 is a deficient number, since it is larger than the sum of its proper divisors (1).

441385397 is an equidigital number, since it uses as much as digits as its factorization.

441385397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 441385397 is about 21009.1741151336. The cubic root of 441385397 is about 761.3879283584.

The spelling of 441385397 in words is "four hundred forty-one million, three hundred eighty-five thousand, three hundred ninety-seven".