1604006 has 8 divisors (see below), whose sum is σ = 2411640. Its totient is φ = 800128.

The previous prime is 1604003. The next prime is 1604017. The reversal of 1604006 is 6004061.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604003) 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 3 ways as a sum of consecutive naturals, for example, 710 + ... + 1926.

It is an arithmetic number, because the mean of its divisors is an integer number (301455).

2^1604006 is an apocalyptic number.

1604006 is a deficient number, since it is larger than the sum of its proper divisors (807634).

1604006 is a wasteful number, since it uses less digits than its factorization.

1604006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1604006 is about 1266.4935846659. The cubic root of 1604006 is about 117.0582416339.

Adding to 1604006 its reverse (6004061), we get a palindrome (7608067).

The spelling of 1604006 in words is "one million, six hundred four thousand, six".