83863 has 4 divisors (see below), whose sum is σ = 90328. Its totient is φ = 77400.

The previous prime is 83857. The next prime is 83869. The reversal of 83863 is 36838.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (83857) and next prime (83869).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83863 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 (83869) 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, 3213 + ... + 3238.

It is an arithmetic number, because the mean of its divisors is an integer number (22582).

2⁸³⁸⁶³ is an apocalyptic number.

83863 is a deficient number, since it is larger than the sum of its proper divisors (6465).

83863 is a wasteful number, since it uses less digits than its factorization.

83863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6464.

The product of its digits is 3456, while the sum is 28.

The square root of 83863 is about 289.5910910232. The cubic root of 83863 is about 43.7713691526.

It can be divided in two parts, 83 and 863, that added together give a triangular number (946 = T₄₃).

The spelling of 83863 in words is "eighty-three thousand, eight hundred sixty-three".