448705987 has 2 divisors, whose sum is σ = 448705988. Its totient is φ = 448705986.

The previous prime is 448705979. The next prime is 448706023. The reversal of 448705987 is 789507844.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 448705987 - 2³ = 448705979 is a prime.

It is not a weakly prime, because it can be changed into another prime (448705087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224352993 + 224352994.

It is an arithmetic number, because the mean of its divisors is an integer number (224352994).

Almost surely, 2^448705987 is an apocalyptic number.

448705987 is a deficient number, since it is larger than the sum of its proper divisors (1).

448705987 is an equidigital number, since it uses as much as digits as its factorization.

448705987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 448705987 is about 21182.6812986458. The cubic root of 448705987 is about 765.5741980386.

The spelling of 448705987 in words is "four hundred forty-eight million, seven hundred five thousand, nine hundred eighty-seven".