1604313 has 8 divisors (see below), whose sum is σ = 2376800. Its totient is φ = 1069524.

The previous prime is 1604311. The next prime is 1604329. The reversal of 1604313 is 3134061.

It is not a de Polignac number, because 1604313 - 2¹ = 1604311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1604311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29683 + ... + 29736.

It is an arithmetic number, because the mean of its divisors is an integer number (297100).

2^1604313 is an apocalyptic number.

It is an amenable number.

1604313 is a deficient number, since it is larger than the sum of its proper divisors (772487).

1604313 is an equidigital number, since it uses as much as digits as its factorization.

1604313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59428 (or 59422 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1604313 is about 1266.6147796390. The cubic root of 1604313 is about 117.0657093092.

Adding to 1604313 its reverse (3134061), we get a palindrome (4738374).

The spelling of 1604313 in words is "one million, six hundred four thousand, three hundred thirteen".