447273493 has 4 divisors (see below), whose sum is σ = 447315820. Its totient is φ = 447231168.

The previous prime is 447273473. The next prime is 447273503. The reversal of 447273493 is 394372744.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 268730449 + 178543044 = 16393^2 + 13362^2 .

It is a cyclic number.

It is not a de Polignac number, because 447273493 - 2⁵ = 447273461 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 (447273473) 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, 9421 + ... + 31357.

It is an arithmetic number, because the mean of its divisors is an integer number (111828955).

Almost surely, 2^447273493 is an apocalyptic number.

It is an amenable number.

447273493 is a deficient number, since it is larger than the sum of its proper divisors (42327).

447273493 is a wasteful number, since it uses less digits than its factorization.

447273493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42326.

The product of its digits is 508032, while the sum is 43.

The square root of 447273493 is about 21148.8414103468. The cubic root of 447273493 is about 764.7586309024.

The spelling of 447273493 in words is "four hundred forty-seven million, two hundred seventy-three thousand, four hundred ninety-three".