64273233 has 8 divisors (see below), whose sum is σ = 85737600. Its totient is φ = 42828848.

The previous prime is 64273229. The next prime is 64273289. The reversal of 64273233 is 33237246.

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

It is a cyclic number.

It is not a de Polignac number, because 64273233 - 2² = 64273229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64273233.

It is not an unprimeable number, because it can be changed into a prime (64273733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5923 + ... + 12791.

It is an arithmetic number, because the mean of its divisors is an integer number (10717200).

Almost surely, 2^64273233 is an apocalyptic number.

It is an amenable number.

64273233 is a deficient number, since it is larger than the sum of its proper divisors (21464367).

64273233 is a wasteful number, since it uses less digits than its factorization.

64273233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9991.

The product of its digits is 18144, while the sum is 30.

The square root of 64273233 is about 8017.0588746747. The cubic root of 64273233 is about 400.5684272602.

The spelling of 64273233 in words is "sixty-four million, two hundred seventy-three thousand, two hundred thirty-three".