335861 has 4 divisors (see below), whose sum is σ = 342252. Its totient is φ = 329472.

The previous prime is 335857. The next prime is 335879. The reversal of 335861 is 168533.

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

It can be written as a sum of positive squares in 2 ways, for example, as 180625 + 155236 = 425^2 + 394^2 .

It is a cyclic number.

It is not a de Polignac number, because 335861 - 2² = 335857 is a prime.

It is a super-2 number, since 2×335861² = 225605222642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 335861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (335821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3116 + ... + 3221.

It is an arithmetic number, because the mean of its divisors is an integer number (85563).

2³³⁵⁸⁶¹ is an apocalyptic number.

It is an amenable number.

335861 is a deficient number, since it is larger than the sum of its proper divisors (6391).

335861 is an equidigital number, since it uses as much as digits as its factorization.

335861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390.

The product of its digits is 2160, while the sum is 26.

The square root of 335861 is about 579.5351585538. The cubic root of 335861 is about 69.5109449147.

The spelling of 335861 in words is "three hundred thirty-five thousand, eight hundred sixty-one".