64073 has 4 divisors (see below), whose sum is σ = 67860. Its totient is φ = 60288.

The previous prime is 64067. The next prime is 64081. The reversal of 64073 is 37046.

64073 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37046 = 2 ⋅18523.

It can be written as a sum of positive squares in 2 ways, for example, as 51529 + 12544 = 227^2 + 112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64073 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon 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, 1868 + ... + 1901.

It is an arithmetic number, because the mean of its divisors is an integer number (16965).

2⁶⁴⁰⁷³ is an apocalyptic number.

It is an amenable number.

64073 is a deficient number, since it is larger than the sum of its proper divisors (3787).

64073 is a wasteful number, since it uses less digits than its factorization.

64073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 64073 is about 253.1264506131. The cubic root of 64073 is about 40.0152025547.

The spelling of 64073 in words is "sixty-four thousand, seventy-three".