3906238 has 16 divisors (see below), whose sum is σ = 6878304. Its totient is φ = 1628640.

The previous prime is 3906187. The next prime is 3906247. The reversal of 3906238 is 8326093.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3253 + ... + 4288.

It is an arithmetic number, because the mean of its divisors is an integer number (429894).

Almost surely, 2^3906238 is an apocalyptic number.

3906238 is a deficient number, since it is larger than the sum of its proper divisors (2972066).

3906238 is a wasteful number, since it uses less digits than its factorization.

3906238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7587.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 3906238 is about 1976.4205018164. The cubic root of 3906238 is about 157.4899699668.

The spelling of 3906238 in words is "three million, nine hundred six thousand, two hundred thirty-eight".