247260841 has 2 divisors, whose sum is σ = 247260842. Its totient is φ = 247260840.

The previous prime is 247260829. The next prime is 247260863. The reversal of 247260841 is 148062742.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141253225 + 106007616 = 11885^2 + 10296^2 .

It is a cyclic number.

It is not a de Polignac number, because 247260841 - 2⁵ = 247260809 is a prime.

It is a super-2 number, since 2×247260841² = 122275846984054562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247260797 and 247260806.

It is not a weakly prime, because it can be changed into another prime (247200841) 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, 123630420 + 123630421.

It is an arithmetic number, because the mean of its divisors is an integer number (123630421).

Almost surely, 2^247260841 is an apocalyptic number.

It is an amenable number.

247260841 is a deficient number, since it is larger than the sum of its proper divisors (1).

247260841 is an equidigital number, since it uses as much as digits as its factorization.

247260841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 247260841 is about 15724.5299134823. The cubic root of 247260841 is about 627.6513212094.

The spelling of 247260841 in words is "two hundred forty-seven million, two hundred sixty thousand, eight hundred forty-one".