190863 has 8 divisors (see below), whose sum is σ = 282800. Its totient is φ = 127224.

The previous prime is 190843. The next prime is 190871. The reversal of 190863 is 368091.

It is not a de Polignac number, because 190863 - 2⁸ = 190607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 7069 = 190863 / (1 + 9 + 0 + 8 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3508 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (35350).

2¹⁹⁰⁸⁶³ is an apocalyptic number.

190863 is a deficient number, since it is larger than the sum of its proper divisors (91937).

190863 is an equidigital number, since it uses as much as digits as its factorization.

190863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7078 (or 7072 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 190863 is about 436.8787017011. The cubic root of 190863 is about 57.5758796578.

The spelling of 190863 in words is "one hundred ninety thousand, eight hundred sixty-three".