4115947217 has 2 divisors, whose sum is σ = 4115947218. Its totient is φ = 4115947216.

The previous prime is 4115947207. The next prime is 4115947261. The reversal of 4115947217 is 7127495114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2787417616 + 1328529601 = 52796^2 + 36449^2 .

It is a cyclic number.

It is not a de Polignac number, because 4115947217 - 2¹⁶ = 4115881681 is a prime.

It is not a weakly prime, because it can be changed into another prime (4115947207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2057973608 + 2057973609.

It is an arithmetic number, because the mean of its divisors is an integer number (2057973609).

Almost surely, 2^4115947217 is an apocalyptic number.

It is an amenable number.

4115947217 is a deficient number, since it is larger than the sum of its proper divisors (1).

4115947217 is an equidigital number, since it uses as much as digits as its factorization.

4115947217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 4115947217 is about 64155.6483639593. The cubic root of 4115947217 is about 1602.5930890406.

The spelling of 4115947217 in words is "four billion, one hundred fifteen million, nine hundred forty-seven thousand, two hundred seventeen".