3647385138 has 8 divisors (see below), whose sum is σ = 7294770288. Its totient is φ = 1215795044.

The previous prime is 3647385109. The next prime is 3647385143. The reversal of 3647385138 is 8315837463.

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

3647385138 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 303948756 + ... + 303948767.

It is an arithmetic number, because the mean of its divisors is an integer number (911846286).

Almost surely, 2^3647385138 is an apocalyptic number.

3647385138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3647385138 is a wasteful number, since it uses less digits than its factorization.

3647385138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607897528.

The product of its digits is 1451520, while the sum is 48.

The square root of 3647385138 is about 60393.5852388314. The cubic root of 3647385138 is about 1539.3139601840.

The spelling of 3647385138 in words is "three billion, six hundred forty-seven million, three hundred eighty-five thousand, one hundred thirty-eight".