844066441 has 2 divisors, whose sum is σ = 844066442. Its totient is φ = 844066440.

The previous prime is 844066427. The next prime is 844066451. The reversal of 844066441 is 144660448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539214841 + 304851600 = 23221^2 + 17460^2 .

It is a cyclic number.

It is not a de Polignac number, because 844066441 - 2⁷ = 844066313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 844066441.

It is not a weakly prime, because it can be changed into another prime (844066411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422033220 + 422033221.

It is an arithmetic number, because the mean of its divisors is an integer number (422033221).

Almost surely, 2^844066441 is an apocalyptic number.

It is an amenable number.

844066441 is a deficient number, since it is larger than the sum of its proper divisors (1).

844066441 is an equidigital number, since it uses as much as digits as its factorization.

844066441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 844066441 is about 29052.8215669322. The cubic root of 844066441 is about 945.0589032272.

The spelling of 844066441 in words is "eight hundred forty-four million, sixty-six thousand, four hundred forty-one".