64023 has 4 divisors (see below), whose sum is σ = 85368. Its totient is φ = 42680.

The previous prime is 64019. The next prime is 64033. The reversal of 64023 is 32046.

64023 is nontrivially palindromic in base 14.

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 64023 - 2² = 64019 is a prime.

It is a D-number.

64023 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 63993 and 64011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64013) 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, 10668 + ... + 10673.

It is an arithmetic number, because the mean of its divisors is an integer number (21342).

2⁶⁴⁰²³ is an apocalyptic number.

64023 is a deficient number, since it is larger than the sum of its proper divisors (21345).

64023 is a wasteful number, since it uses less digits than its factorization.

64023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21344.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 64023 is about 253.0276664715. The cubic root of 64023 is about 40.0047910928.

Adding to 64023 its reverse (32046), we get a palindrome (96069).

The spelling of 64023 in words is "sixty-four thousand, twenty-three".