448849987 has 2 divisors, whose sum is σ = 448849988. Its totient is φ = 448849986.

The previous prime is 448849931. The next prime is 448850009. The reversal of 448849987 is 789948844.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 448849987 - 2¹⁵ = 448817219 is a prime.

It is not a weakly prime, because it can be changed into another prime (448849927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224424993 + 224424994.

It is an arithmetic number, because the mean of its divisors is an integer number (224424994).

Almost surely, 2^448849987 is an apocalyptic number.

448849987 is a deficient number, since it is larger than the sum of its proper divisors (1).

448849987 is an equidigital number, since it uses as much as digits as its factorization.

448849987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18579456, while the sum is 61.

The square root of 448849987 is about 21186.0800291135. The cubic root of 448849987 is about 765.6560860281.

The spelling of 448849987 in words is "four hundred forty-eight million, eight hundred forty-nine thousand, nine hundred eighty-seven".