10915217 has 2 divisors, whose sum is σ = 10915218. Its totient is φ = 10915216.

The previous prime is 10915199. The next prime is 10915243. The reversal of 10915217 is 71251901.

It is an a-pointer prime, because the next prime (10915243) can be obtained adding 10915217 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10182481 + 732736 = 3191^2 + 856^2 .

It is a cyclic number.

It is not a de Polignac number, because 10915217 - 2⁶ = 10915153 is a prime.

It is equal to p₇₂₁₂₇₇ and since 10915217 and 721277 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (10915417) 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, 5457608 + 5457609.

It is an arithmetic number, because the mean of its divisors is an integer number (5457609).

Almost surely, 2^10915217 is an apocalyptic number.

It is an amenable number.

10915217 is a deficient number, since it is larger than the sum of its proper divisors (1).

10915217 is an equidigital number, since it uses as much as digits as its factorization.

10915217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 10915217 is about 3303.8185482862. The cubic root of 10915217 is about 221.8251538359.

The spelling of 10915217 in words is "ten million, nine hundred fifteen thousand, two hundred seventeen".