1995604433 has 2 divisors, whose sum is σ = 1995604434. Its totient is φ = 1995604432.

The previous prime is 1995604423. The next prime is 1995604469. The reversal of 1995604433 is 3344065991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1148328769 + 847275664 = 33887^2 + 29108^2 .

It is a cyclic number.

It is not a de Polignac number, because 1995604433 - 2⁴ = 1995604417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1995604423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997802216 + 997802217.

It is an arithmetic number, because the mean of its divisors is an integer number (997802217).

Almost surely, 2^1995604433 is an apocalyptic number.

It is an amenable number.

1995604433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1995604433 is an equidigital number, since it uses as much as digits as its factorization.

1995604433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 1995604433 is about 44672.1885852932. The cubic root of 1995604433 is about 1258.9973616435.

The spelling of 1995604433 in words is "one billion, nine hundred ninety-five million, six hundred four thousand, four hundred thirty-three".