64193 has 4 divisors (see below), whose sum is σ = 67008. Its totient is φ = 61380.

The previous prime is 64189. The next prime is 64217. The reversal of 64193 is 39146.

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 64193 - 2² = 64189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 2791 = 64193 / (6 + 4 + 1 + 9 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64123) 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, 1373 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (16752).

2⁶⁴¹⁹³ is an apocalyptic number.

It is an amenable number.

64193 is a deficient number, since it is larger than the sum of its proper divisors (2815).

64193 is a wasteful number, since it uses less digits than its factorization.

64193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814.

The product of its digits is 648, while the sum is 23.

The square root of 64193 is about 253.3633754117. The cubic root of 64193 is about 40.0401679832.

The spelling of 64193 in words is "sixty-four thousand, one hundred ninety-three".