3790487081 has 2 divisors, whose sum is σ = 3790487082. Its totient is φ = 3790487080.

The previous prime is 3790486993. The next prime is 3790487117. The reversal of 3790487081 is 1807840973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2223594025 + 1566893056 = 47155^2 + 39584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3790487081 is a prime.

It is a super-2 number, since 2×3790487081² = 28735584622455801122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3790487881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1895243540 + 1895243541.

It is an arithmetic number, because the mean of its divisors is an integer number (1895243541).

Almost surely, 2^3790487081 is an apocalyptic number.

It is an amenable number.

3790487081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3790487081 is an equidigital number, since it uses as much as digits as its factorization.

3790487081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 3790487081 is about 61566.9317166285. The cubic root of 3790487081 is about 1559.1874851924.

The spelling of 3790487081 in words is "three billion, seven hundred ninety million, four hundred eighty-seven thousand, eighty-one".