820194 has 16 divisors (see below), whose sum is σ = 1650432. Its totient is φ = 271728.

The previous prime is 820187. The next prime is 820201. The reversal of 820194 is 491028.

It is an interprime number because it is at equal distance from previous prime (820187) and next prime (820201).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032 + ... + 1644.

It is an arithmetic number, because the mean of its divisors is an integer number (103152).

2⁸²⁰¹⁹⁴ is an apocalyptic number.

820194 is an abundant number, since it is smaller than the sum of its proper divisors (830238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

820194 is a wasteful number, since it uses less digits than its factorization.

820194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 820194 is about 905.6456260591. The cubic root of 820194 is about 93.6063970352.

It can be divided in two parts, 8 and 20194, that added together give a palindrome (20202).

The spelling of 820194 in words is "eight hundred twenty thousand, one hundred ninety-four".