326021 has 4 divisors (see below), whose sum is σ = 343200. Its totient is φ = 308844.

The previous prime is 325999. The next prime is 326023. The reversal of 326021 is 120623.

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 326021 - 2⁶ = 325957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 325987 and 326005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326023) 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, 8561 + ... + 8598.

It is an arithmetic number, because the mean of its divisors is an integer number (85800).

2³²⁶⁰²¹ is an apocalyptic number.

It is an amenable number.

326021 is a deficient number, since it is larger than the sum of its proper divisors (17179).

326021 is a wasteful number, since it uses less digits than its factorization.

326021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17178.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 326021 is about 570.9824865966. The cubic root of 326021 is about 68.8253652866.

Adding to 326021 its reverse (120623), we get a palindrome (446644).

The spelling of 326021 in words is "three hundred twenty-six thousand, twenty-one".