3688845987 has 8 divisors (see below), whose sum is σ = 4980720640. Its totient is φ = 2428101000.

The previous prime is 3688845949. The next prime is 3688846003. The reversal of 3688845987 is 7895488863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3688845987 - 2¹⁰ = 3688844963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3688843987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7782139 + ... + 7782612.

It is an arithmetic number, because the mean of its divisors is an integer number (622590080).

Almost surely, 2^3688845987 is an apocalyptic number.

3688845987 is a deficient number, since it is larger than the sum of its proper divisors (1291874653).

3688845987 is a wasteful number, since it uses less digits than its factorization.

3688845987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15564833.

The product of its digits is 92897280, while the sum is 66.

The square root of 3688845987 is about 60735.8706778787. The cubic root of 3688845987 is about 1545.1246028055.

The spelling of 3688845987 in words is "three billion, six hundred eighty-eight million, eight hundred forty-five thousand, nine hundred eighty-seven".