63668 has 12 divisors (see below), whose sum is σ = 121632. Its totient is φ = 28920.

The previous prime is 63667. The next prime is 63671. The reversal of 63668 is 86636.

It is a super-2 number, since 2×63668² = 8107228448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63667) 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, 680 + ... + 767.

It is an arithmetic number, because the mean of its divisors is an integer number (10136).

2⁶³⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

63668 is a deficient number, since it is larger than the sum of its proper divisors (57964).

63668 is a wasteful number, since it uses less digits than its factorization.

63668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1460 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 63668 is about 252.3251870107. The cubic root of 63668 is about 39.9307133868.

The spelling of 63668 in words is "sixty-three thousand, six hundred sixty-eight".