9775247 has 2 divisors, whose sum is σ = 9775248. Its totient is φ = 9775246.

The previous prime is 9775243. The next prime is 9775307. The reversal of 9775247 is 7425779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9775247 - 2² = 9775243 is a prime.

It is a super-2 number, since 2×9775247² = 191110907822018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9775243) 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, 4887623 + 4887624.

It is an arithmetic number, because the mean of its divisors is an integer number (4887624).

Almost surely, 2^9775247 is an apocalyptic number.

9775247 is a deficient number, since it is larger than the sum of its proper divisors (1).

9775247 is an equidigital number, since it uses as much as digits as its factorization.

9775247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 41.

The square root of 9775247 is about 3126.5391409672. The cubic root of 9775247 is about 213.8171714155.

The spelling of 9775247 in words is "nine million, seven hundred seventy-five thousand, two hundred forty-seven".