1604634023 has 2 divisors, whose sum is σ = 1604634024. Its totient is φ = 1604634022.

The previous prime is 1604634011. The next prime is 1604634041. The reversal of 1604634023 is 3204364061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1604634023 - 2⁶ = 1604633959 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604634923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802317011 + 802317012.

It is an arithmetic number, because the mean of its divisors is an integer number (802317012).

Almost surely, 2^1604634023 is an apocalyptic number.

1604634023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604634023 is an equidigital number, since it uses as much as digits as its factorization.

1604634023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 1604634023 is about 40057.8834063908. The cubic root of 1604634023 is about 1170.7351707045.

Adding to 1604634023 its reverse (3204364061), we get a palindrome (4808998084).

The spelling of 1604634023 in words is "one billion, six hundred four million, six hundred thirty-four thousand, twenty-three".