844484387 has 2 divisors, whose sum is σ = 844484388. Its totient is φ = 844484386.

The previous prime is 844484383. The next prime is 844484419. The reversal of 844484387 is 783484448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 844484387 - 2² = 844484383 is a prime.

It is not a weakly prime, because it can be changed into another prime (844484383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422242193 + 422242194.

It is an arithmetic number, because the mean of its divisors is an integer number (422242194).

Almost surely, 2^844484387 is an apocalyptic number.

844484387 is a deficient number, since it is larger than the sum of its proper divisors (1).

844484387 is an equidigital number, since it uses as much as digits as its factorization.

844484387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2752512, while the sum is 50.

The square root of 844484387 is about 29060.0135409466. The cubic root of 844484387 is about 945.2148618872.

The spelling of 844484387 in words is "eight hundred forty-four million, four hundred eighty-four thousand, three hundred eighty-seven".