3799990121 has 2 divisors, whose sum is σ = 3799990122. Its totient is φ = 3799990120.

The previous prime is 3799990097. The next prime is 3799990123. The reversal of 3799990121 is 1210999973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2710660096 + 1089330025 = 52064^2 + 33005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3799990121 is a prime.

Together with 3799990123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3799990121.

It is not a weakly prime, because it can be changed into another prime (3799990123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1899995060 + 1899995061.

It is an arithmetic number, because the mean of its divisors is an integer number (1899995061).

Almost surely, 2^3799990121 is an apocalyptic number.

It is an amenable number.

3799990121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3799990121 is an equidigital number, since it uses as much as digits as its factorization.

3799990121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 50.

The square root of 3799990121 is about 61644.0599003667. The cubic root of 3799990121 is about 1560.4893984183.

The spelling of 3799990121 in words is "three billion, seven hundred ninety-nine million, nine hundred ninety thousand, one hundred twenty-one".