63867 has 8 divisors (see below), whose sum is σ = 86800. Its totient is φ = 41760.

The previous prime is 63863. The next prime is 63901. The reversal of 63867 is 76836.

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

It is not a de Polignac number, because 63867 - 2² = 63863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63863) 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, 9 + ... + 357.

It is an arithmetic number, because the mean of its divisors is an integer number (10850).

2⁶³⁸⁶⁷ is an apocalyptic number.

63867 is a deficient number, since it is larger than the sum of its proper divisors (22933).

63867 is a wasteful number, since it uses less digits than its factorization.

63867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its digits is 6048, while the sum is 30.

The square root of 63867 is about 252.7192117746. The cubic root of 63867 is about 39.9722724507.

The spelling of 63867 in words is "sixty-three thousand, eight hundred sixty-seven".