447828479 has 4 divisors (see below), whose sum is σ = 511803984. Its totient is φ = 383852976.

The previous prime is 447828443. The next prime is 447828503. The reversal of 447828479 is 974828744.

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 447828479 - 2⁸ = 447828223 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 447828479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447828419) 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, 31987742 + ... + 31987755.

It is an arithmetic number, because the mean of its divisors is an integer number (127950996).

Almost surely, 2^447828479 is an apocalyptic number.

447828479 is a deficient number, since it is larger than the sum of its proper divisors (63975505).

447828479 is an equidigital number, since it uses as much as digits as its factorization.

447828479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63975504.

The product of its digits is 3612672, while the sum is 53.

The square root of 447828479 is about 21161.9582978514. The cubic root of 447828479 is about 765.0748094925.

The spelling of 447828479 in words is "four hundred forty-seven million, eight hundred twenty-eight thousand, four hundred seventy-nine".