1604343001 has 2 divisors, whose sum is σ = 1604343002. Its totient is φ = 1604343000.

The previous prime is 1604342963. The next prime is 1604343107. The reversal of 1604343001 is 1003434061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 895505625 + 708837376 = 29925^2 + 26624^2 .

It is a cyclic number.

It is not a de Polignac number, because 1604343001 - 2¹¹ = 1604340953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1604343401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802171500 + 802171501.

It is an arithmetic number, because the mean of its divisors is an integer number (802171501).

Almost surely, 2^1604343001 is an apocalyptic number.

It is an amenable number.

1604343001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604343001 is an equidigital number, since it uses as much as digits as its factorization.

1604343001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1604343001 is about 40054.2507232379. The cubic root of 1604343001 is about 1170.6643902263.

Adding to 1604343001 its reverse (1003434061), we get a palindrome (2607777062).

The spelling of 1604343001 in words is "one billion, six hundred four million, three hundred forty-three thousand, one".