65887 has 4 divisors (see below), whose sum is σ = 67536. Its totient is φ = 64240.

The previous prime is 65881. The next prime is 65899. The reversal of 65887 is 78856.

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 65887 - 2¹¹ = 63839 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65881) 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, 763 + ... + 844.

It is an arithmetic number, because the mean of its divisors is an integer number (16884).

2⁶⁵⁸⁸⁷ is an apocalyptic number.

65887 is a deficient number, since it is larger than the sum of its proper divisors (1649).

65887 is a wasteful number, since it uses less digits than its factorization.

65887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648.

The product of its digits is 13440, while the sum is 34.

The square root of 65887 is about 256.6846314059. The cubic root of 65887 is about 40.3893233886.

The spelling of 65887 in words is "sixty-five thousand, eight hundred eighty-seven".