7997997941 has 2 divisors, whose sum is σ = 7997997942. Its totient is φ = 7997997940.

The previous prime is 7997997907. The next prime is 7997997947. The reversal of 7997997941 is 1497997997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7980742225 + 17255716 = 89335^2 + 4154^2 .

It is a cyclic number.

It is not a de Polignac number, because 7997997941 - 2¹⁴ = 7997981557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7997997947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3998998970 + 3998998971.

It is an arithmetic number, because the mean of its divisors is an integer number (3998998971).

Almost surely, 2^7997997941 is an apocalyptic number.

It is an amenable number.

7997997941 is a deficient number, since it is larger than the sum of its proper divisors (1).

7997997941 is an equidigital number, since it uses as much as digits as its factorization.

7997997941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81015228, while the sum is 71.

The square root of 7997997941 is about 89431.5265496458. The cubic root of 7997997941 is about 1999.8331478306.

The spelling of 7997997941 in words is "seven billion, nine hundred ninety-seven million, nine hundred ninety-seven thousand, nine hundred forty-one".