108387617 has 4 divisors (see below), whose sum is σ = 116725140. Its totient is φ = 100050096.

The previous prime is 108387583. The next prime is 108387637. The reversal of 108387617 is 716783801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 716783801 = 17 ⋅42163753.

It can be written as a sum of positive squares in 2 ways, for example, as 21077281 + 87310336 = 4591^2 + 9344^2 .

It is a cyclic number.

It is not a de Polignac number, because 108387617 - 2¹⁴ = 108371233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108387637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4168742 + ... + 4168767.

It is an arithmetic number, because the mean of its divisors is an integer number (29181285).

Almost surely, 2^108387617 is an apocalyptic number.

It is an amenable number.

108387617 is a deficient number, since it is larger than the sum of its proper divisors (8337523).

108387617 is an equidigital number, since it uses as much as digits as its factorization.

108387617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8337522.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 108387617 is about 10410.9373737431. The cubic root of 108387617 is about 476.7893609424.

The spelling of 108387617 in words is "one hundred eight million, three hundred eighty-seven thousand, six hundred seventeen".