3891122341 has 2 divisors, whose sum is σ = 3891122342. Its totient is φ = 3891122340.

The previous prime is 3891122297. The next prime is 3891122363. The reversal of 3891122341 is 1432211983.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3475574116 + 415548225 = 58954^2 + 20385^2 .

It is an emirp because it is prime and its reverse (1432211983) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3891122341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3891122297 and 3891122306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3891122441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945561170 + 1945561171.

It is an arithmetic number, because the mean of its divisors is an integer number (1945561171).

Almost surely, 2^3891122341 is an apocalyptic number.

It is an amenable number.

3891122341 is a deficient number, since it is larger than the sum of its proper divisors (1).

3891122341 is an equidigital number, since it uses as much as digits as its factorization.

3891122341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 3891122341 is about 62378.8613313837. The cubic root of 3891122341 is about 1572.8656523079.

The spelling of 3891122341 in words is "three billion, eight hundred ninety-one million, one hundred twenty-two thousand, three hundred forty-one".