63685223 has 8 divisors (see below), whose sum is σ = 73464192. Its totient is φ = 54076536.

The previous prime is 63685217. The next prime is 63685231. The reversal of 63685223 is 32258636.

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 63685223 - 2⁸ = 63684967 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 (63685123) 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, 41765 + ... + 43262.

It is an arithmetic number, because the mean of its divisors is an integer number (9183024).

Almost surely, 2^63685223 is an apocalyptic number.

63685223 is a deficient number, since it is larger than the sum of its proper divisors (9778969).

63685223 is a wasteful number, since it uses less digits than its factorization.

63685223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85141.

The product of its digits is 51840, while the sum is 35.

The square root of 63685223 is about 7980.3021872608. The cubic root of 63685223 is about 399.3431364996.

The spelling of 63685223 in words is "sixty-three million, six hundred eighty-five thousand, two hundred twenty-three".