335891 has 4 divisors (see below), whose sum is σ = 337152. Its totient is φ = 334632.

The previous prime is 335879. The next prime is 335893. The reversal of 335891 is 198533.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-335891 is a prime.

It is a super-2 number, since 2×335891² = 225645527762, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 335891.

It is not an unprimeable number, because it can be changed into a prime (335893) 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, 56 + ... + 821.

It is an arithmetic number, because the mean of its divisors is an integer number (84288).

2³³⁵⁸⁹¹ is an apocalyptic number.

335891 is a deficient number, since it is larger than the sum of its proper divisors (1261).

335891 is an equidigital number, since it uses as much as digits as its factorization.

335891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

The product of its digits is 3240, while the sum is 29.

The square root of 335891 is about 579.5610407886. The cubic root of 335891 is about 69.5130144874.

The spelling of 335891 in words is "three hundred thirty-five thousand, eight hundred ninety-one".