3906943 has 4 divisors (see below), whose sum is σ = 3917088. Its totient is φ = 3896800.

The previous prime is 3906919. The next prime is 3906949. The reversal of 3906943 is 3496093.

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 3906943 - 2⁵ = 3906911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3906899 and 3906908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3906949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4471 + ... + 5272.

It is an arithmetic number, because the mean of its divisors is an integer number (979272).

Almost surely, 2^3906943 is an apocalyptic number.

3906943 is a deficient number, since it is larger than the sum of its proper divisors (10145).

3906943 is an equidigital number, since it uses as much as digits as its factorization.

3906943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10144.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 3906943 is about 1976.5988465038. The cubic root of 3906943 is about 157.4994440226.

The spelling of 3906943 in words is "three million, nine hundred six thousand, nine hundred forty-three".