45647 has 4 divisors (see below), whose sum is σ = 52176. Its totient is φ = 39120.

The previous prime is 45641. The next prime is 45659. The reversal of 45647 is 74654.

45647 is nontrivially palindromic in base 6.

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 45647 - 2⁴ = 45631 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45641) 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, 3254 + ... + 3267.

It is an arithmetic number, because the mean of its divisors is an integer number (13044).

2⁴⁵⁶⁴⁷ is an apocalyptic number.

45647 is a deficient number, since it is larger than the sum of its proper divisors (6529).

45647 is an equidigital number, since it uses as much as digits as its factorization.

45647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6528.

The product of its digits is 3360, while the sum is 26.

The square root of 45647 is about 213.6515855312. The cubic root of 45647 is about 35.7385899330.

The spelling of 45647 in words is "forty-five thousand, six hundred forty-seven".