336421 has 4 divisors (see below), whose sum is σ = 351072. Its totient is φ = 321772.

The previous prime is 336419. The next prime is 336437. The reversal of 336421 is 124633.

336421 is nontrivially palindromic in base 2 and base 16.

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 336421 - 2¹ = 336419 is a prime.

It is a super-2 number, since 2×336421² = 226358178482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (336491) 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 3 ways as a sum of consecutive naturals, for example, 7291 + ... + 7336.

It is an arithmetic number, because the mean of its divisors is an integer number (87768).

2³³⁶⁴²¹ is an apocalyptic number.

It is an amenable number.

336421 is a deficient number, since it is larger than the sum of its proper divisors (14651).

336421 is a wasteful number, since it uses less digits than its factorization.

336421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14650.

The product of its digits is 432, while the sum is 19.

The square root of 336421 is about 580.0181031658. The cubic root of 336421 is about 69.5495566366.

It can be divided in two parts, 336 and 421, that added together give a palindrome (757).

The spelling of 336421 in words is "three hundred thirty-six thousand, four hundred twenty-one".