1604084 has 12 divisors (see below), whose sum is σ = 2875908. Its totient is φ = 782400.

The previous prime is 1604081. The next prime is 1604087. The reversal of 1604084 is 4804061.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1604081) and next prime (1604087).

It can be written as a sum of positive squares in 2 ways, for example, as 327184 + 1276900 = 572^2 + 1130^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4727 + ... + 5054.

It is an arithmetic number, because the mean of its divisors is an integer number (239659).

2^1604084 is an apocalyptic number.

It is an amenable number.

1604084 is a deficient number, since it is larger than the sum of its proper divisors (1271824).

1604084 is a wasteful number, since it uses less digits than its factorization.

1604084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826 (or 9824 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1604084 is about 1266.5243779730. The cubic root of 1604084 is about 117.0601390488.

Subtracting from 1604084 its sum of digits (23), we obtain a palindrome (1604061).

The spelling of 1604084 in words is "one million, six hundred four thousand, eighty-four".