1604353 has 4 divisors (see below), whose sum is σ = 1609300. Its totient is φ = 1599408.

The previous prime is 1604347. The next prime is 1604359. The reversal of 1604353 is 3534061.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1604347) and next prime (1604359).

It can be written as a sum of positive squares in 2 ways, for example, as 588289 + 1016064 = 767^2 + 1008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1604353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1604359) 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, 1950 + ... + 2647.

It is an arithmetic number, because the mean of its divisors is an integer number (402325).

2^1604353 is an apocalyptic number.

It is an amenable number.

1604353 is a deficient number, since it is larger than the sum of its proper divisors (4947).

1604353 is an equidigital number, since it uses as much as digits as its factorization.

1604353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4946.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1604353 is about 1266.6305696611. The cubic root of 1604353 is about 117.0666822260.

The spelling of 1604353 in words is "one million, six hundred four thousand, three hundred fifty-three".