333861 has 16 divisors (see below), whose sum is σ = 496128. Its totient is φ = 198000.

The previous prime is 333857. The next prime is 333871. The reversal of 333861 is 168333.

It is not a de Polignac number, because 333861 - 2² = 333857 is a prime.

It is a super-2 number, since 2×333861² = 222926334642, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2136 + ... + 2286.

It is an arithmetic number, because the mean of its divisors is an integer number (31008).

2³³³⁸⁶¹ is an apocalyptic number.

It is an amenable number.

333861 is a deficient number, since it is larger than the sum of its proper divisors (162267).

333861 is a wasteful number, since it uses less digits than its factorization.

333861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232.

The product of its digits is 1296, while the sum is 24.

The square root of 333861 is about 577.8070612237. The cubic root of 333861 is about 69.3726945099.

The spelling of 333861 in words is "three hundred thirty-three thousand, eight hundred sixty-one".