335921 has 4 divisors (see below), whose sum is σ = 337392. Its totient is φ = 334452.

The previous prime is 335917. The next prime is 335941. The reversal of 335921 is 129533.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 335921 - 2² = 335917 is a prime.

It is a super-2 number, since 2×335921² = 225685836482, 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 335921.

It is not an unprimeable number, because it can be changed into a prime (335941) 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, 311 + ... + 876.

It is an arithmetic number, because the mean of its divisors is an integer number (84348).

2³³⁵⁹²¹ is an apocalyptic number.

It is an amenable number.

335921 is a deficient number, since it is larger than the sum of its proper divisors (1471).

335921 is a wasteful number, since it uses less digits than its factorization.

335921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470.

The product of its digits is 810, while the sum is 23.

The square root of 335921 is about 579.5869218676. The cubic root of 335921 is about 69.5150839368.

The spelling of 335921 in words is "three hundred thirty-five thousand, nine hundred twenty-one".