1604061 has 12 divisors (see below), whose sum is σ = 2380092. Its totient is φ = 1040256.

The previous prime is 1604059. The next prime is 1604081.

1604061 is a `hidden beast` number, since 1 + 604 + 0 + 61 = 666.

1604061 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 783225 + 820836 = 885^2 + 906^2 .

It is not a de Polignac number, because 1604061 - 2¹ = 1604059 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604021) 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 11 ways as a sum of consecutive naturals, for example, 2076 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (198341).

2^1604061 is an apocalyptic number.

It is an amenable number.

1604061 is a deficient number, since it is larger than the sum of its proper divisors (776031).

1604061 is a wasteful number, since it uses less digits than its factorization.

1604061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4860 (or 4857 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1604061 is about 1266.5152979731. The cubic root of 1604061 is about 117.0595795611.

The spelling of 1604061 in words is "one million, six hundred four thousand, sixty-one".