108729947 has 8 divisors (see below), whose sum is σ = 113749920. Its totient is φ = 103734400.

The previous prime is 108729931. The next prime is 108729949. The reversal of 108729947 is 749927801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108729947 - 2⁴ = 108729931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108729949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3329 + ... + 15117.

It is an arithmetic number, because the mean of its divisors is an integer number (14218740).

Almost surely, 2^108729947 is an apocalyptic number.

108729947 is a deficient number, since it is larger than the sum of its proper divisors (5019973).

108729947 is a wasteful number, since it uses less digits than its factorization.

108729947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12213.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 108729947 is about 10427.3652952220. The cubic root of 108729947 is about 477.2907951184.

The spelling of 108729947 in words is "one hundred eight million, seven hundred twenty-nine thousand, nine hundred forty-seven".