107841721 has 16 divisors (see below), whose sum is σ = 120055936. Its totient is φ = 96235776.

The previous prime is 107841719. The next prime is 107841743. The reversal of 107841721 is 127148701.

It is not a de Polignac number, because 107841721 - 2¹ = 107841719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (107841751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56641 + ... + 58513.

It is an arithmetic number, because the mean of its divisors is an integer number (7503496).

Almost surely, 2^107841721 is an apocalyptic number.

It is an amenable number.

107841721 is a deficient number, since it is larger than the sum of its proper divisors (12214215).

107841721 is a wasteful number, since it uses less digits than its factorization.

107841721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 107841721 is about 10384.6868513210. The cubic root of 107841721 is about 475.9875608759.

The spelling of 107841721 in words is "one hundred seven million, eight hundred forty-one thousand, seven hundred twenty-one".