107921985 has 8 divisors (see below), whose sum is σ = 172675200. Its totient is φ = 57558384.

The previous prime is 107921971. The next prime is 107922013. The reversal of 107921985 is 589129701.

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

It is not a de Polignac number, because 107921985 - 2¹¹ = 107919937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3597385 + ... + 3597414.

It is an arithmetic number, because the mean of its divisors is an integer number (21584400).

Almost surely, 2^107921985 is an apocalyptic number.

107921985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

107921985 is a deficient number, since it is larger than the sum of its proper divisors (64753215).

107921985 is an equidigital number, since it uses as much as digits as its factorization.

107921985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7194807.

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 107921985 is about 10388.5506688854. The cubic root of 107921985 is about 476.1056202901.

The spelling of 107921985 in words is "one hundred seven million, nine hundred twenty-one thousand, nine hundred eighty-five".