445840097 has 2 divisors, whose sum is σ = 445840098. Its totient is φ = 445840096.

The previous prime is 445840063. The next prime is 445840099. The reversal of 445840097 is 790048544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341473441 + 104366656 = 18479^2 + 10216^2 .

It is a cyclic number.

It is not a de Polignac number, because 445840097 - 2¹⁰ = 445839073 is a prime.

Together with 445840099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (445840099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222920048 + 222920049.

It is an arithmetic number, because the mean of its divisors is an integer number (222920049).

Almost surely, 2^445840097 is an apocalyptic number.

It is an amenable number.

445840097 is a deficient number, since it is larger than the sum of its proper divisors (1).

445840097 is an equidigital number, since it uses as much as digits as its factorization.

445840097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 445840097 is about 21114.9259293041. The cubic root of 445840097 is about 763.9408053559.

The spelling of 445840097 in words is "four hundred forty-five million, eight hundred forty thousand, ninety-seven".