448199977 has 2 divisors, whose sum is σ = 448199978. Its totient is φ = 448199976.

The previous prime is 448199971. The next prime is 448200007. The reversal of 448199977 is 779991844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 409212441 + 38987536 = 20229^2 + 6244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448199977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (448199971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224099988 + 224099989.

It is an arithmetic number, because the mean of its divisors is an integer number (224099989).

Almost surely, 2^448199977 is an apocalyptic number.

It is an amenable number.

448199977 is a deficient number, since it is larger than the sum of its proper divisors (1).

448199977 is an equidigital number, since it uses as much as digits as its factorization.

448199977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 58.

The square root of 448199977 is about 21170.7339740501. The cubic root of 448199977 is about 765.2863080297.

The spelling of 448199977 in words is "four hundred forty-eight million, one hundred ninety-nine thousand, nine hundred seventy-seven".