63897 has 12 divisors (see below), whose sum is σ = 91440. Its totient is φ = 39672.

The previous prime is 63863. The next prime is 63901. The reversal of 63897 is 79836.

It is a happy number.

It is not a de Polignac number, because 63897 - 2¹⁰ = 62873 is a prime.

Its product of digits (9072) is a multiple of the sum of its prime divisors (81).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (63857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054 + ... + 1112.

It is an arithmetic number, because the mean of its divisors is an integer number (7620).

2⁶³⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

63897 is a deficient number, since it is larger than the sum of its proper divisors (27543).

63897 is a wasteful number, since it uses less digits than its factorization.

63897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 81 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 63897 is about 252.7785592174. The cubic root of 63897 is about 39.9785301449.

The spelling of 63897 in words is "sixty-three thousand, eight hundred ninety-seven".