8415997241 has 2 divisors, whose sum is σ = 8415997242. Its totient is φ = 8415997240.

The previous prime is 8415997217. The next prime is 8415997327. The reversal of 8415997241 is 1427995148.

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., 5167453225 + 3248544016 = 71885^2 + 56996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8415997241 is a prime.

It is a super-2 number, since 2×8415997241² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8415997241.

It is not a weakly prime, because it can be changed into another prime (8415994241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4207998620 + 4207998621.

It is an arithmetic number, because the mean of its divisors is an integer number (4207998621).

Almost surely, 2^8415997241 is an apocalyptic number.

It is an amenable number.

8415997241 is a deficient number, since it is larger than the sum of its proper divisors (1).

8415997241 is an equidigital number, since it uses as much as digits as its factorization.

8415997241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 50.

The square root of 8415997241 is about 91738.7444921719. The cubic root of 8415997241 is about 2034.0823347918.

The spelling of 8415997241 in words is "eight billion, four hundred fifteen million, nine hundred ninety-seven thousand, two hundred forty-one".