64047 has 8 divisors (see below), whose sum is σ = 87856. Its totient is φ = 41472.

The previous prime is 64037. The next prime is 64063. The reversal of 64047 is 74046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64047 - 2¹² = 59951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64047.

It is not an unprimeable number, because it can be changed into a prime (64007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178 + ... + 399.

It is an arithmetic number, because the mean of its divisors is an integer number (10982).

2⁶⁴⁰⁴⁷ is an apocalyptic number.

64047 is a deficient number, since it is larger than the sum of its proper divisors (23809).

64047 is a wasteful number, since it uses less digits than its factorization.

64047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 64047 is about 253.0750876716. The cubic root of 64047 is about 40.0097892707.

Subtracting 64047 from its reverse (74046), we obtain a palindrome (9999).

The spelling of 64047 in words is "sixty-four thousand, forty-seven".