1604806 has 16 divisors (see below), whose sum is σ = 2787840. Its totient is φ = 678600.

The previous prime is 1604753. The next prime is 1604809. The reversal of 1604806 is 6084061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381 + ... + 1831.

It is an arithmetic number, because the mean of its divisors is an integer number (174240).

2^1604806 is an apocalyptic number.

1604806 is a deficient number, since it is larger than the sum of its proper divisors (1183034).

1604806 is a wasteful number, since it uses less digits than its factorization.

1604806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1604806 is about 1266.8093779255. The cubic root of 1604806 is about 117.0776993809.

Adding to 1604806 its reverse (6084061), we get a palindrome (7688867).

The spelling of 1604806 in words is "one million, six hundred four thousand, eight hundred six".