7966247 has 2 divisors, whose sum is σ = 7966248. Its totient is φ = 7966246.

The previous prime is 7966237. The next prime is 7966253. The reversal of 7966247 is 7426697.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7966247 - 2¹² = 7962151 is a prime.

It is a super-2 number, since 2×7966247² = 126922182530018, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 7 + 9⁷ + 6³ + 6³ + 2²¹ + 4⁹ + 7⁷ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7966207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3983123 + 3983124.

It is an arithmetic number, because the mean of its divisors is an integer number (3983124).

Almost surely, 2^7966247 is an apocalyptic number.

7966247 is a deficient number, since it is larger than the sum of its proper divisors (1).

7966247 is an equidigital number, since it uses as much as digits as its factorization.

7966247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 41.

The square root of 7966247 is about 2822.4540740285. The cubic root of 7966247 is about 199.7183284920.

The spelling of 7966247 in words is "seven million, nine hundred sixty-six thousand, two hundred forty-seven".