89863 has 4 divisors (see below), whose sum is σ = 91168. Its totient is φ = 88560.

The previous prime is 89849. The next prime is 89867. The reversal of 89863 is 36898.

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 89863 - 2¹³ = 81671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89867) 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, 543 + ... + 688.

It is an arithmetic number, because the mean of its divisors is an integer number (22792).

2⁸⁹⁸⁶³ is an apocalyptic number.

89863 is a deficient number, since it is larger than the sum of its proper divisors (1305).

89863 is a wasteful number, since it uses less digits than its factorization.

89863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304.

The product of its digits is 10368, while the sum is 34.

The square root of 89863 is about 299.7715797069. The cubic root of 89863 is about 44.7912969382.

It can be divided in two parts, 898 and 63, that added together give a square (961 = 31²).

The spelling of 89863 in words is "eighty-nine thousand, eight hundred sixty-three".