1604969341 has 2 divisors, whose sum is σ = 1604969342. Its totient is φ = 1604969340.

The previous prime is 1604969339. The next prime is 1604969347. The reversal of 1604969341 is 1439694061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1235522500 + 369446841 = 35150^2 + 19221^2 .

It is a cyclic number.

It is not a de Polignac number, because 1604969341 - 2¹ = 1604969339 is a prime.

Together with 1604969339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604969347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802484670 + 802484671.

It is an arithmetic number, because the mean of its divisors is an integer number (802484671).

Almost surely, 2^1604969341 is an apocalyptic number.

It is an amenable number.

1604969341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604969341 is an equidigital number, since it uses as much as digits as its factorization.

1604969341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1604969341 is about 40062.0686061017. The cubic root of 1604969341 is about 1170.8167139575.

The spelling of 1604969341 in words is "one billion, six hundred four million, nine hundred sixty-nine thousand, three hundred forty-one".