8127397 has 2 divisors, whose sum is σ = 8127398. Its totient is φ = 8127396.

The previous prime is 8127341. The next prime is 8127403. The reversal of 8127397 is 7937218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7043716 + 1083681 = 2654^2 + 1041^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8127397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8127697) 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, 4063698 + 4063699.

It is an arithmetic number, because the mean of its divisors is an integer number (4063699).

Almost surely, 2^8127397 is an apocalyptic number.

It is an amenable number.

8127397 is a deficient number, since it is larger than the sum of its proper divisors (1).

8127397 is an equidigital number, since it uses as much as digits as its factorization.

8127397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 8127397 is about 2850.8589933562. The cubic root of 8127397 is about 201.0560555849.

The spelling of 8127397 in words is "eight million, one hundred twenty-seven thousand, three hundred ninety-seven".