4087684720 has 40 divisors (see below), whose sum is σ = 10861563744. Its totient is φ = 1401491712.

The previous prime is 4087684693. The next prime is 4087684723. The reversal of 4087684720 is 274867804.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4087684723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3649159 + ... + 3650278.

Almost surely, 2^4087684720 is an apocalyptic number.

4087684720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4087684720 is an abundant number, since it is smaller than the sum of its proper divisors (6773879024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4087684720 is a wasteful number, since it uses less digits than its factorization.

4087684720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299457 (or 7299451 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 46.

The square root of 4087684720 is about 63935.0038711190. The cubic root of 4087684720 is about 1598.9165477476.

The spelling of 4087684720 in words is "four billion, eighty-seven million, six hundred eighty-four thousand, seven hundred twenty".