64546223 has 8 divisors (see below), whose sum is σ = 73932192. Its totient is φ = 55201536.

The previous prime is 64546219. The next prime is 64546231. The reversal of 64546223 is 32264546.

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 64546223 - 2² = 64546219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64546223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64546213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6890 + ... + 13287.

It is an arithmetic number, because the mean of its divisors is an integer number (9241524).

Almost surely, 2^64546223 is an apocalyptic number.

64546223 is a deficient number, since it is larger than the sum of its proper divisors (9385969).

64546223 is a wasteful number, since it uses less digits than its factorization.

64546223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20641.

The product of its digits is 34560, while the sum is 32.

The square root of 64546223 is about 8034.0664050031. The cubic root of 64546223 is about 401.1347424383.

The spelling of 64546223 in words is "sixty-four million, five hundred forty-six thousand, two hundred twenty-three".