63964223 has 8 divisors (see below), whose sum is σ = 65681280. Its totient is φ = 62254720.

The previous prime is 63964213. The next prime is 63964237. The reversal of 63964223 is 32246936.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63964223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63964213) 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, 18011 + ... + 21267.

It is an arithmetic number, because the mean of its divisors is an integer number (8210160).

Almost surely, 2^63964223 is an apocalyptic number.

63964223 is a deficient number, since it is larger than the sum of its proper divisors (1717057).

63964223 is a wasteful number, since it uses less digits than its factorization.

63964223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777.

The product of its digits is 46656, while the sum is 35.

The square root of 63964223 is about 7997.7636249142. The cubic root of 63964223 is about 399.9254506902.

The spelling of 63964223 in words is "sixty-three million, nine hundred sixty-four thousand, two hundred twenty-three".