3639676938 has 16 divisors (see below), whose sum is σ = 7328210400. Its totient is φ = 1205082896.

The previous prime is 3639676933. The next prime is 3639676951. The reversal of 3639676938 is 8396769363.

It is not an unprimeable number, because it can be changed into a prime (3639676933) 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, 2034720 + ... + 2036507.

It is an arithmetic number, because the mean of its divisors is an integer number (458013150).

Almost surely, 2^3639676938 is an apocalyptic number.

3639676938 is an abundant number, since it is smaller than the sum of its proper divisors (3688533462).

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

3639676938 is a wasteful number, since it uses less digits than its factorization.

3639676938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071381.

The product of its digits is 26453952, while the sum is 60.

The square root of 3639676938 is about 60329.7351063304. The cubic root of 3639676938 is about 1538.2288258770.

The spelling of 3639676938 in words is "three billion, six hundred thirty-nine million, six hundred seventy-six thousand, nine hundred thirty-eight".