63344863 has 4 divisors (see below), whose sum is σ = 63431320. Its totient is φ = 63258408.

The previous prime is 63344857. The next prime is 63344881. The reversal of 63344863 is 36844336.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63344863 - 2¹⁷ = 63213791 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 (63344893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42120 + ... + 43597.

It is an arithmetic number, because the mean of its divisors is an integer number (15857830).

Almost surely, 2^63344863 is an apocalyptic number.

63344863 is a deficient number, since it is larger than the sum of its proper divisors (86457).

63344863 is an equidigital number, since it uses as much as digits as its factorization.

63344863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86456.

The product of its digits is 124416, while the sum is 37.

The square root of 63344863 is about 7958.9486114687. The cubic root of 63344863 is about 398.6304474160.

The spelling of 63344863 in words is "sixty-three million, three hundred forty-four thousand, eight hundred sixty-three".