8061997 has 2 divisors, whose sum is σ = 8061998. Its totient is φ = 8061996.

The previous prime is 8061931. The next prime is 8062001. The reversal of 8061997 is 7991608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7584516 + 477481 = 2754^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 8061997 - 2¹¹ = 8059949 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8062997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4030998 + 4030999.

It is an arithmetic number, because the mean of its divisors is an integer number (4030999).

Almost surely, 2^8061997 is an apocalyptic number.

It is an amenable number.

8061997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8061997 is an equidigital number, since it uses as much as digits as its factorization.

8061997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 8061997 is about 2839.3655981574. The cubic root of 8061997 is about 200.5153127900.

The spelling of 8061997 in words is "eight million, sixty-one thousand, nine hundred ninety-seven".