3688147 has 4 divisors (see below), whose sum is σ = 3882280. Its totient is φ = 3494016.

The previous prime is 3688141. The next prime is 3688151. The reversal of 3688147 is 7418863.

It is a happy number.

3688147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3688147 - 2¹¹ = 3686099 is a prime.

It is a Duffinian number.

3688147 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3688141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97038 + ... + 97075.

It is an arithmetic number, because the mean of its divisors is an integer number (970570).

Almost surely, 2^3688147 is an apocalyptic number.

3688147 is a deficient number, since it is larger than the sum of its proper divisors (194133).

3688147 is a wasteful number, since it uses less digits than its factorization.

3688147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194132.

The product of its digits is 32256, while the sum is 37.

The square root of 3688147 is about 1920.4548940290. The cubic root of 3688147 is about 154.5027003155.

It can be divided in two parts, 368 and 8147, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 3688147 in words is "three million, six hundred eighty-eight thousand, one hundred forty-seven".