3934213 has 4 divisors (see below), whose sum is σ = 3940000. Its totient is φ = 3928428.

The previous prime is 3934207. The next prime is 3934261. The reversal of 3934213 is 3124393.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3934213 - 2¹⁷ = 3803141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3934013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713 + ... + 3286.

It is an arithmetic number, because the mean of its divisors is an integer number (985000).

Almost surely, 2^3934213 is an apocalyptic number.

It is an amenable number.

3934213 is a deficient number, since it is larger than the sum of its proper divisors (5787).

3934213 is an equidigital number, since it uses as much as digits as its factorization.

3934213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786.

The product of its digits is 1944, while the sum is 25.

The square root of 3934213 is about 1983.4850642241. The cubic root of 3934213 is about 157.8650372346.

The spelling of 3934213 in words is "three million, nine hundred thirty-four thousand, two hundred thirteen".