1604996 has 12 divisors (see below), whose sum is σ = 2820048. Its totient is φ = 799272.

The previous prime is 1604983. The next prime is 1605001. The reversal of 1604996 is 6994061.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575 + ... + 1881.

It is an arithmetic number, because the mean of its divisors is an integer number (235004).

2^1604996 is an apocalyptic number.

It is an amenable number.

1604996 is a deficient number, since it is larger than the sum of its proper divisors (1215052).

1604996 is a wasteful number, since it uses less digits than its factorization.

1604996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618 (or 1616 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1604996 is about 1266.8843672569. The cubic root of 1604996 is about 117.0823196455.

The spelling of 1604996 in words is "one million, six hundred four thousand, nine hundred ninety-six".