64320269 has 8 divisors (see below), whose sum is σ = 70103712. Its totient is φ = 58656240.

The previous prime is 64320241. The next prime is 64320281. The reversal of 64320269 is 96202346.

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 64320269 - 2⁸ = 64320013 is a prime.

It is a super-2 number, since 2×64320269² = 8274194008464722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64320209) 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, 28727 + ... + 30884.

It is an arithmetic number, because the mean of its divisors is an integer number (8762964).

Almost surely, 2^64320269 is an apocalyptic number.

It is an amenable number.

64320269 is a deficient number, since it is larger than the sum of its proper divisors (5783443).

64320269 is a wasteful number, since it uses less digits than its factorization.

64320269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59707.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 64320269 is about 8019.9918329135. The cubic root of 64320269 is about 400.6661171873. Note that the first 3 decimals are identical.

The spelling of 64320269 in words is "sixty-four million, three hundred twenty thousand, two hundred sixty-nine".