604091 has 4 divisors (see below), whose sum is σ = 616992. Its totient is φ = 591192.

The previous prime is 604073. The next prime is 604171. The reversal of 604091 is 190406.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190406 = 2 ⋅95203.

It is a cyclic number.

It is not a de Polignac number, because 604091 - 2¹⁸ = 341947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (604001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6380 + ... + 6473.

It is an arithmetic number, because the mean of its divisors is an integer number (154248).

2⁶⁰⁴⁰⁹¹ is an apocalyptic number.

604091 is a deficient number, since it is larger than the sum of its proper divisors (12901).

604091 is a wasteful number, since it uses less digits than its factorization.

604091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12900.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 604091 is about 777.2329123242. The cubic root of 604091 is about 84.5345259982.

Adding to 604091 its reverse (190406), we get a palindrome (794497).

The spelling of 604091 in words is "six hundred four thousand, ninety-one".