448851779 has 4 divisors (see below), whose sum is σ = 448938600. Its totient is φ = 448764960.

The previous prime is 448851749. The next prime is 448851857. The reversal of 448851779 is 977158844.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 448851779 - 2²⁸ = 180416323 is a prime.

It is a super-2 number, since 2×448851779² = 402935839022929682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 448851779.

It is not an unprimeable number, because it can be changed into a prime (448851749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35129 + ... + 46170.

It is an arithmetic number, because the mean of its divisors is an integer number (112234650).

Almost surely, 2^448851779 is an apocalyptic number.

448851779 is a deficient number, since it is larger than the sum of its proper divisors (86821).

448851779 is an equidigital number, since it uses as much as digits as its factorization.

448851779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86820.

The product of its digits is 2257920, while the sum is 53.

The square root of 448851779 is about 21186.1223209912. The cubic root of 448851779 is about 765.6571049683.

It can be divided in two parts, 44885 and 1779, that added together give a palindrome (46664).

The spelling of 448851779 in words is "four hundred forty-eight million, eight hundred fifty-one thousand, seven hundred seventy-nine".