8647473 has 4 divisors (see below), whose sum is σ = 11529968. Its totient is φ = 5764980.

The previous prime is 8647469. The next prime is 8647501. The reversal of 8647473 is 3747468.

It is a happy number.

8647473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 8647473 - 2² = 8647469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8647273) 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, 1441243 + ... + 1441248.

It is an arithmetic number, because the mean of its divisors is an integer number (2882492).

Almost surely, 2^8647473 is an apocalyptic number.

It is an amenable number.

8647473 is a deficient number, since it is larger than the sum of its proper divisors (2882495).

8647473 is a wasteful number, since it uses less digits than its factorization.

8647473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882494.

The product of its digits is 112896, while the sum is 39.

The square root of 8647473 is about 2940.6585997018. The cubic root of 8647473 is about 205.2562569707.

The spelling of 8647473 in words is "eight million, six hundred forty-seven thousand, four hundred seventy-three".