326091 has 8 divisors (see below), whose sum is σ = 441040. Its totient is φ = 214272.

The previous prime is 326087. The next prime is 326099. The reversal of 326091 is 190623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 326091 - 2² = 326087 is a prime.

It is a Duffinian number.

326091 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (55130).

2³²⁶⁰⁹¹ is an apocalyptic number.

326091 is a deficient number, since it is larger than the sum of its proper divisors (114949).

326091 is a wasteful number, since it uses less digits than its factorization.

326091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 326091 is about 571.0437811587. The cubic root of 326091 is about 68.8302907677.

The spelling of 326091 in words is "three hundred twenty-six thousand, ninety-one".