447804493 has 4 divisors (see below), whose sum is σ = 448102368. Its totient is φ = 447506620.

The previous prime is 447804491. The next prime is 447804509. The reversal of 447804493 is 394408744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 447804493 - 2¹ = 447804491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447804491) 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, 146671 + ... + 149692.

It is an arithmetic number, because the mean of its divisors is an integer number (112025592).

Almost surely, 2^447804493 is an apocalyptic number.

It is an amenable number.

447804493 is a deficient number, since it is larger than the sum of its proper divisors (297875).

447804493 is a wasteful number, since it uses less digits than its factorization.

447804493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297874.

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 447804493 is about 21161.3915657737. The cubic root of 447804493 is about 765.0611499384.

The spelling of 447804493 in words is "four hundred forty-seven million, eight hundred four thousand, four hundred ninety-three".