108691207 has 2 divisors, whose sum is σ = 108691208. Its totient is φ = 108691206.

The previous prime is 108691151. The next prime is 108691243. The reversal of 108691207 is 702196801.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108691207 - 2¹¹ = 108689159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108691277) 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, 54345603 + 54345604.

It is an arithmetic number, because the mean of its divisors is an integer number (54345604).

Almost surely, 2^108691207 is an apocalyptic number.

108691207 is a deficient number, since it is larger than the sum of its proper divisors (1).

108691207 is an equidigital number, since it uses as much as digits as its factorization.

108691207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 108691207 is about 10425.5075176223. The cubic root of 108691207 is about 477.2341028505.

The spelling of 108691207 in words is "one hundred eight million, six hundred ninety-one thousand, two hundred seven".