8119997 has 2 divisors, whose sum is σ = 8119998. Its totient is φ = 8119996.

The previous prime is 8119987. The next prime is 8120023. The reversal of 8119997 is 7999118.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7284601 + 835396 = 2699^2 + 914^2 .

It is a cyclic number.

It is not a de Polignac number, because 8119997 - 2⁴ = 8119981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8119907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4059998 + 4059999.

It is an arithmetic number, because the mean of its divisors is an integer number (4059999).

Almost surely, 2^8119997 is an apocalyptic number.

It is an amenable number.

8119997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8119997 is an equidigital number, since it uses as much as digits as its factorization.

8119997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 44.

The square root of 8119997 is about 2849.5608433581. The cubic root of 8119997 is about 200.9950165014.

The spelling of 8119997 in words is "eight million, one hundred nineteen thousand, nine hundred ninety-seven".