3686238984 has 64 divisors (see below), whose sum is σ = 9521740800. Its totient is φ = 1188484416.

The previous prime is 3686238977. The next prime is 3686239033. The reversal of 3686238984 is 4898326863.

It is a happy number.

It is a super-2 number, since 2×3686238984² = 27176715694322704512, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 88957 + ... + 123635.

It is an arithmetic number, because the mean of its divisors is an integer number (148777200).

Almost surely, 2^3686238984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3686238984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4760870400).

3686238984 is an abundant number, since it is smaller than the sum of its proper divisors (5835501816).

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

3686238984 is a wasteful number, since it uses less digits than its factorization.

3686238984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34834 (or 34830 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 57.

The square root of 3686238984 is about 60714.4050782020. The cubic root of 3686238984 is about 1544.7605238322.

The spelling of 3686238984 in words is "three billion, six hundred eighty-six million, two hundred thirty-eight thousand, nine hundred eighty-four".