64933 has 4 divisors (see below), whose sum is σ = 70848. Its totient is φ = 59020.

The previous prime is 64927. The next prime is 64937. The reversal of 64933 is 33946.

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 a cyclic number.

It is not a de Polignac number, because 64933 - 2⁵ = 64901 is a prime.

It is an Ulam number.

It is a Duffinian number.

64933 is a lucky number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 64898 and 64907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64937) 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 3 ways as a sum of consecutive naturals, for example, 2941 + ... + 2962.

It is an arithmetic number, because the mean of its divisors is an integer number (17712).

2⁶⁴⁹³³ is an apocalyptic number.

It is an amenable number.

64933 is a deficient number, since it is larger than the sum of its proper divisors (5915).

64933 is a wasteful number, since it uses less digits than its factorization.

64933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5914.

The product of its digits is 1944, while the sum is 25.

The square root of 64933 is about 254.8195439914. The cubic root of 64933 is about 40.1934380352.

The spelling of 64933 in words is "sixty-four thousand, nine hundred thirty-three".