4687601721 has 16 divisors (see below), whose sum is σ = 6828090048. Its totient is φ = 2836904000.

The previous prime is 4687601693. The next prime is 4687601753. The reversal of 4687601721 is 1271067864.

It is a cyclic number.

It is not a de Polignac number, because 4687601721 - 2⁷ = 4687601593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4687601021) 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, 78186 + ... + 124451.

It is an arithmetic number, because the mean of its divisors is an integer number (426755628).

Almost surely, 2^4687601721 is an apocalyptic number.

It is an amenable number.

4687601721 is a deficient number, since it is larger than the sum of its proper divisors (2140488327).

4687601721 is a wasteful number, since it uses less digits than its factorization.

4687601721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203352.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 4687601721 is about 68466.0625492660. The cubic root of 4687601721 is about 1673.5944809648.

The spelling of 4687601721 in words is "four billion, six hundred eighty-seven million, six hundred one thousand, seven hundred twenty-one".