1604411 has 8 divisors (see below), whose sum is σ = 1697280. Its totient is φ = 1513512.

The previous prime is 1604399. The next prime is 1604413. The reversal of 1604411 is 1144061.

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

It is a cyclic number.

It is not a de Polignac number, because 1604411 - 2⁶ = 1604347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1604411.

It is not an unprimeable number, because it can be changed into a prime (1604413) 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 7 ways as a sum of consecutive naturals, for example, 1376 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (212160).

2^1604411 is an apocalyptic number.

1604411 is a deficient number, since it is larger than the sum of its proper divisors (92869).

1604411 is an equidigital number, since it uses as much as digits as its factorization.

1604411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1604411 is about 1266.6534648435. The cubic root of 1604411 is about 117.0680929267.

Adding to 1604411 its reverse (1144061), we get a palindrome (2748472).

The spelling of 1604411 in words is "one million, six hundred four thousand, four hundred eleven".