3928147 has 8 divisors (see below), whose sum is σ = 4122144. Its totient is φ = 3736128.

The previous prime is 3928123. The next prime is 3928151. The reversal of 3928147 is 7418293.

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

It is a cyclic number.

It is not a de Polignac number, because 3928147 - 2⁷ = 3928019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3928157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4993 + ... + 5725.

It is an arithmetic number, because the mean of its divisors is an integer number (515268).

Almost surely, 2^3928147 is an apocalyptic number.

3928147 is a deficient number, since it is larger than the sum of its proper divisors (193997).

3928147 is a wasteful number, since it uses less digits than its factorization.

3928147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989.

The product of its digits is 12096, while the sum is 34.

The square root of 3928147 is about 1981.9553476302. The cubic root of 3928147 is about 157.7838603127.

The spelling of 3928147 in words is "three million, nine hundred twenty-eight thousand, one hundred forty-seven".