7934643973 has 2 divisors, whose sum is σ = 7934643974. Its totient is φ = 7934643972.

The previous prime is 7934643943. The next prime is 7934644001. The reversal of 7934643973 is 3793464397.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7248308769 + 686335204 = 85137^2 + 26198^2 .

It is a cyclic number.

It is not a de Polignac number, because 7934643973 - 2¹³ = 7934635781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7934643943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3967321986 + 3967321987.

It is an arithmetic number, because the mean of its divisors is an integer number (3967321987).

Almost surely, 2^7934643973 is an apocalyptic number.

It is an amenable number.

7934643973 is a deficient number, since it is larger than the sum of its proper divisors (1).

7934643973 is an equidigital number, since it uses as much as digits as its factorization.

7934643973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10287648, while the sum is 55.

The square root of 7934643973 is about 89076.6185539168. The cubic root of 7934643973 is about 1994.5387654487.

The spelling of 7934643973 in words is "seven billion, nine hundred thirty-four million, six hundred forty-three thousand, nine hundred seventy-three".