447775 has 6 divisors (see below), whose sum is σ = 555272. Its totient is φ = 358200.

The previous prime is 447757. The next prime is 447779. The reversal of 447775 is 577744.

It is not a de Polignac number, because 447775 - 2⁵ = 447743 is a prime.

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 447775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8931 + ... + 8980.

2⁴⁴⁷⁷⁷⁵ is an apocalyptic number.

447775 is a deficient number, since it is larger than the sum of its proper divisors (107497).

447775 is a wasteful number, since it uses less digits than its factorization.

447775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17921 (or 17916 counting only the distinct ones).

The product of its digits is 27440, while the sum is 34.

The square root of 447775 is about 669.1599210951. The cubic root of 447775 is about 76.5044353588.

The spelling of 447775 in words is "four hundred forty-seven thousand, seven hundred seventy-five".