3820994917 has 2 divisors, whose sum is σ = 3820994918. Its totient is φ = 3820994916.

The previous prime is 3820994911. The next prime is 3820994927. The reversal of 3820994917 is 7194990283.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3696761601 + 124233316 = 60801^2 + 11146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3820994917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3820994911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1910497458 + 1910497459.

It is an arithmetic number, because the mean of its divisors is an integer number (1910497459).

Almost surely, 2^3820994917 is an apocalyptic number.

It is an amenable number.

3820994917 is a deficient number, since it is larger than the sum of its proper divisors (1).

3820994917 is an equidigital number, since it uses as much as digits as its factorization.

3820994917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 3820994917 is about 61814.1967269656. The cubic root of 3820994917 is about 1563.3593666007.

The spelling of 3820994917 in words is "three billion, eight hundred twenty million, nine hundred ninety-four thousand, nine hundred seventeen".