3903939 has 24 divisors (see below), whose sum is σ = 6183632. Its totient is φ = 2358720.

The previous prime is 3903937. The next prime is 3903947. The reversal of 3903939 is 9393093.

It is not a de Polignac number, because 3903939 - 2¹ = 3903937 is a prime.

3903939 is a modest number, since divided by 3939 gives 390 as remainder.

It is not an unprimeable number, because it can be changed into a prime (3903937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6864 + ... + 7410.

Almost surely, 2^3903939 is an apocalyptic number.

3903939 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3903939 is a deficient number, since it is larger than the sum of its proper divisors (2279693).

3903939 is a wasteful number, since it uses less digits than its factorization.

3903939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 19683, while the sum is 36.

The square root of 3903939 is about 1975.8388092150. The cubic root of 3903939 is about 157.4590672162.

The spelling of 3903939 in words is "three million, nine hundred three thousand, nine hundred thirty-nine".