108017947 has 4 divisors (see below), whose sum is σ = 108039280. Its totient is φ = 107996616.

The previous prime is 108017933. The next prime is 108017951. The reversal of 108017947 is 749710801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 108017947 - 2¹¹ = 108015899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108017957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1738 + ... + 14800.

It is an arithmetic number, because the mean of its divisors is an integer number (27009820).

Almost surely, 2^108017947 is an apocalyptic number.

108017947 is a deficient number, since it is larger than the sum of its proper divisors (21333).

108017947 is an equidigital number, since it uses as much as digits as its factorization.

108017947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21332.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 108017947 is about 10393.1682849841. The cubic root of 108017947 is about 476.2466929134.

The spelling of 108017947 in words is "one hundred eight million, seventeen thousand, nine hundred forty-seven".