4387684861 has 12 divisors (see below), whose sum is σ = 5325957792. Its totient is φ = 3597355608.

The previous prime is 4387684841. The next prime is 4387684867. The reversal of 4387684861 is 1684867834.

4387684861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4387684861 - 2¹⁷ = 4387553789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4387684867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1945495 + ... + 1947748.

It is an arithmetic number, because the mean of its divisors is an integer number (443829816).

Almost surely, 2^4387684861 is an apocalyptic number.

It is an amenable number.

4387684861 is a deficient number, since it is larger than the sum of its proper divisors (938272931).

4387684861 is a wasteful number, since it uses less digits than its factorization.

4387684861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893280 (or 3893273 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 55.

The square root of 4387684861 is about 66239.6019085260. The cubic root of 4387684861 is about 1637.1123164032.

The spelling of 4387684861 in words is "four billion, three hundred eighty-seven million, six hundred eighty-four thousand, eight hundred sixty-one".