4005687085 has 16 divisors (see below), whose sum is σ = 4932329472. Its totient is φ = 3121142400.

The previous prime is 4005687073. The next prime is 4005687109. The reversal of 4005687085 is 5807865004.

It is not a de Polignac number, because 4005687085 - 2⁷ = 4005686957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108340 + ... + 140530.

It is an arithmetic number, because the mean of its divisors is an integer number (308270592).

Almost surely, 2^4005687085 is an apocalyptic number.

It is an amenable number.

4005687085 is a deficient number, since it is larger than the sum of its proper divisors (926642387).

4005687085 is a wasteful number, since it uses less digits than its factorization.

4005687085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32844.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 4005687085 is about 63290.4975885006. The cubic root of 4005687085 is about 1588.1530027727.

The spelling of 4005687085 in words is "four billion, five million, six hundred eighty-seven thousand, eighty-five".