1604424703 has 4 divisors (see below), whose sum is σ = 1833628240. Its totient is φ = 1375221168.

The previous prime is 1604424697. The next prime is 1604424707. The reversal of 1604424703 is 3074244061.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1604424703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604424707) 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, 114601758 + ... + 114601771.

It is an arithmetic number, because the mean of its divisors is an integer number (458407060).

Almost surely, 2^1604424703 is an apocalyptic number.

1604424703 is a deficient number, since it is larger than the sum of its proper divisors (229203537).

1604424703 is an equidigital number, since it uses as much as digits as its factorization.

1604424703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229203536.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 1604424703 is about 40055.2706020069. The cubic root of 1604424703 is about 1170.6842621195.

Adding to 1604424703 its reverse (3074244061), we get a palindrome (4678668764).

The spelling of 1604424703 in words is "one billion, six hundred four million, four hundred twenty-four thousand, seven hundred three".