3890971241 has 2 divisors, whose sum is σ = 3890971242. Its totient is φ = 3890971240.

The previous prime is 3890971159. The next prime is 3890971247. The reversal of 3890971241 is 1421790983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2952835600 + 938135641 = 54340^2 + 30629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3890971241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3890971192 and 3890971201.

It is not a weakly prime, because it can be changed into another prime (3890971247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945485620 + 1945485621.

It is an arithmetic number, because the mean of its divisors is an integer number (1945485621).

Almost surely, 2^3890971241 is an apocalyptic number.

It is an amenable number.

3890971241 is a deficient number, since it is larger than the sum of its proper divisors (1).

3890971241 is an equidigital number, since it uses as much as digits as its factorization.

3890971241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 3890971241 is about 62377.6501721570. The cubic root of 3890971241 is about 1572.8452928798.

The spelling of 3890971241 in words is "three billion, eight hundred ninety million, nine hundred seventy-one thousand, two hundred forty-one".