7040971997 has 2 divisors, whose sum is σ = 7040971998. Its totient is φ = 7040971996.

The previous prime is 7040971967. The next prime is 7040972011. The reversal of 7040971997 is 7991790407.

7040971997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7040216836 + 755161 = 83906^2 + 869^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7040971997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7040971967) 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, 3520485998 + 3520485999.

It is an arithmetic number, because the mean of its divisors is an integer number (3520485999).

Almost surely, 2^7040971997 is an apocalyptic number.

It is an amenable number.

7040971997 is a deficient number, since it is larger than the sum of its proper divisors (1).

7040971997 is an equidigital number, since it uses as much as digits as its factorization.

7040971997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000188, while the sum is 53.

The square root of 7040971997 is about 83910.4999210468. The cubic root of 7040971997 is about 1916.6561441775.

The spelling of 7040971997 in words is "seven billion, forty million, nine hundred seventy-one thousand, nine hundred ninety-seven".