3939427 has 8 divisors (see below), whose sum is σ = 4284576. Its totient is φ = 3606912.

The previous prime is 3939421. The next prime is 3939433. The reversal of 3939427 is 7249393.

3939427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3939421) and next prime (3939433).

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 3939427 - 2¹⁵ = 3906659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3939421) 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 7 ways as a sum of consecutive naturals, for example, 2503 + ... + 3760.

It is an arithmetic number, because the mean of its divisors is an integer number (535572).

Almost surely, 2^3939427 is an apocalyptic number.

3939427 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3939427 is a deficient number, since it is larger than the sum of its proper divisors (345149).

3939427 is a wasteful number, since it uses less digits than its factorization.

3939427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317.

The product of its digits is 40824, while the sum is 37.

The square root of 3939427 is about 1984.7989822650. The cubic root of 3939427 is about 157.9347457930.

The spelling of 3939427 in words is "three million, nine hundred thirty-nine thousand, four hundred twenty-seven".