3938747 has 8 divisors (see below), whose sum is σ = 4272912. Its totient is φ = 3616000.

The previous prime is 3938743. The next prime is 3938771. The reversal of 3938747 is 7478393.

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 3938747 - 2² = 3938743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3938743) 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, 2129 + ... + 3522.

It is an arithmetic number, because the mean of its divisors is an integer number (534114).

Almost surely, 2^3938747 is an apocalyptic number.

3938747 is a deficient number, since it is larger than the sum of its proper divisors (334165).

3938747 is a wasteful number, since it uses less digits than its factorization.

3938747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5709.

The product of its digits is 127008, while the sum is 41.

The square root of 3938747 is about 1984.6276728898. The cubic root of 3938747 is about 157.9256580241.

The spelling of 3938747 in words is "three million, nine hundred thirty-eight thousand, seven hundred forty-seven".