448773869 has 4 divisors (see below), whose sum is σ = 464248860. Its totient is φ = 433298880.

The previous prime is 448773859. The next prime is 448773877. The reversal of 448773869 is 968377844.

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

It can be written as a sum of positive squares in 2 ways, for example, as 137780644 + 310993225 = 11738^2 + 17635^2 .

It is a cyclic number.

It is not a de Polignac number, because 448773869 - 2²⁰ = 447725293 is a prime.

It is a super-2 number, since 2×448773869² = 402795970994458322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448773859) 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, 7737452 + ... + 7737509.

It is an arithmetic number, because the mean of its divisors is an integer number (116062215).

Almost surely, 2^448773869 is an apocalyptic number.

It is an amenable number.

448773869 is a deficient number, since it is larger than the sum of its proper divisors (15474991).

448773869 is a wasteful number, since it uses less digits than its factorization.

448773869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15474990.

The product of its digits is 8128512, while the sum is 56.

The square root of 448773869 is about 21184.2835375662. The cubic root of 448773869 is about 765.6128024468.

The spelling of 448773869 in words is "four hundred forty-eight million, seven hundred seventy-three thousand, eight hundred sixty-nine".