3979199699 has 2 divisors, whose sum is σ = 3979199700. Its totient is φ = 3979199698.

The previous prime is 3979199689. The next prime is 3979199723. The reversal of 3979199699 is 9969919793.

It is a weak prime.

It is an emirp because it is prime and its reverse (9969919793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3979199699 - 2²⁰ = 3978151123 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (3979199689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1989599849 + 1989599850.

It is an arithmetic number, because the mean of its divisors is an integer number (1989599850).

Almost surely, 2^3979199699 is an apocalyptic number.

3979199699 is a deficient number, since it is larger than the sum of its proper divisors (1).

3979199699 is an equidigital number, since it uses as much as digits as its factorization.

3979199699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66961566, while the sum is 71.

The square root of 3979199699 is about 63080.8980516289. The cubic root of 3979199699 is about 1584.6447337714.

The spelling of 3979199699 in words is "three billion, nine hundred seventy-nine million, one hundred ninety-nine thousand, six hundred ninety-nine".