3799981909 has 2 divisors, whose sum is σ = 3799981910. Its totient is φ = 3799981908.

The previous prime is 3799981901. The next prime is 3799981919. The reversal of 3799981909 is 9091899973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2445005809 + 1354976100 = 49447^2 + 36810^2 .

It is a cyclic number.

It is not a de Polignac number, because 3799981909 - 2³ = 3799981901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3799981901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1899990954 + 1899990955.

It is an arithmetic number, because the mean of its divisors is an integer number (1899990955).

Almost surely, 2^3799981909 is an apocalyptic number.

It is an amenable number.

3799981909 is a deficient number, since it is larger than the sum of its proper divisors (1).

3799981909 is an equidigital number, since it uses as much as digits as its factorization.

3799981909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9920232, while the sum is 64.

The square root of 3799981909 is about 61643.9932921286. The cubic root of 3799981909 is about 1560.4882743146.

The spelling of 3799981909 in words is "three billion, seven hundred ninety-nine million, nine hundred eighty-one thousand, nine hundred nine".