64673 has 4 divisors (see below), whose sum is σ = 73920. Its totient is φ = 55428.

The previous prime is 64667. The next prime is 64679. The reversal of 64673 is 37646.

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 an interprime number because it is at equal distance from previous prime (64667) and next prime (64679).

It is a cyclic number.

It is not a de Polignac number, because 64673 - 2⁶ = 64609 is a prime.

It is a Curzon number.

It is a plaindrome in base 13.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (64679) 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, 4613 + ... + 4626.

It is an arithmetic number, because the mean of its divisors is an integer number (18480).

2⁶⁴⁶⁷³ is an apocalyptic number.

It is an amenable number.

64673 is a deficient number, since it is larger than the sum of its proper divisors (9247).

64673 is an equidigital number, since it uses as much as digits as its factorization.

64673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9246.

The product of its digits is 3024, while the sum is 26.

The square root of 64673 is about 254.3088673248. The cubic root of 64673 is about 40.1397197251.

It can be divided in two parts, 64 and 673, that added together give a palindrome (737).

The spelling of 64673 in words is "sixty-four thousand, six hundred seventy-three".