108907217 has 2 divisors, whose sum is σ = 108907218. Its totient is φ = 108907216.

The previous prime is 108907181. The next prime is 108907223. The reversal of 108907217 is 712709801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101284096 + 7623121 = 10064^2 + 2761^2 .

It is a cyclic number.

It is not a de Polignac number, because 108907217 - 2¹² = 108903121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108907517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54453608 + 54453609.

It is an arithmetic number, because the mean of its divisors is an integer number (54453609).

Almost surely, 2^108907217 is an apocalyptic number.

It is an amenable number.

108907217 is a deficient number, since it is larger than the sum of its proper divisors (1).

108907217 is an equidigital number, since it uses as much as digits as its factorization.

108907217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 108907217 is about 10435.8620630976. The cubic root of 108907217 is about 477.5500410811.

The spelling of 108907217 in words is "one hundred eight million, nine hundred seven thousand, two hundred seventeen".