448477765 has 12 divisors (see below), whose sum is σ = 570078756. Its totient is φ = 337530368.

The previous prime is 448477751. The next prime is 448477787. The reversal of 448477765 is 567774844.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 986049 + 447491716 = 993^2 + 21154^2 .

It is a de Polignac number, because none of the positive numbers 2^k-448477765 is a prime.

It is a super-2 number, since 2×448477765² = 402264611398790450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194097 + ... + 196393.

It is an arithmetic number, because the mean of its divisors is an integer number (47506563).

Almost surely, 2^448477765 is an apocalyptic number.

It is an amenable number.

448477765 is a deficient number, since it is larger than the sum of its proper divisors (121600991).

448477765 is an frugal number, since it uses more digits than its factorization.

448477765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616 (or 2319 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 52.

The square root of 448477765 is about 21177.2936184018. The cubic root of 448477765 is about 765.4443799169. Note that the first 3 decimals are identical.

The spelling of 448477765 in words is "four hundred forty-eight million, four hundred seventy-seven thousand, seven hundred sixty-five".