63895 has 8 divisors (see below), whose sum is σ = 82656. Its totient is φ = 47136.

The previous prime is 63863. The next prime is 63901. The reversal of 63895 is 59836.

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 63895 - 2⁵ = 63863 is a prime.

It is a Duffinian number.

63895 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427 + ... + 556.

It is an arithmetic number, because the mean of its divisors is an integer number (10332).

63895 is a Friedman number, since it can be written as 983*65, using all its digits and the basic arithmetic operations.

2⁶³⁸⁹⁵ is an apocalyptic number.

63895 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

63895 is a deficient number, since it is larger than the sum of its proper divisors (18761).

63895 is a wasteful number, since it uses less digits than its factorization.

63895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001.

The product of its digits is 6480, while the sum is 31.

The square root of 63895 is about 252.7746031547. The cubic root of 63895 is about 39.9781130262.

The spelling of 63895 in words is "sixty-three thousand, eight hundred ninety-five".