64670 has 16 divisors (see below), whose sum is σ = 120960. Its totient is φ = 24864.

The previous prime is 64667. The next prime is 64679. The reversal of 64670 is 7646.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64679) 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, 179 + ... + 401.

It is an arithmetic number, because the mean of its divisors is an integer number (7560).

2⁶⁴⁶⁷⁰ is an apocalyptic number.

64670 is a deficient number, since it is larger than the sum of its proper divisors (56290).

64670 is a wasteful number, since it uses less digits than its factorization.

64670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 64670 is about 254.3029689170. The cubic root of 64670 is about 40.1390990589.

The spelling of 64670 in words is "sixty-four thousand, six hundred seventy".