3938306 has 4 divisors (see below), whose sum is σ = 5907462. Its totient is φ = 1969152.

The previous prime is 3938303. The next prime is 3938321. The reversal of 3938306 is 6038393.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3822025 + 116281 = 1955^2 + 341^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938303) 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 as a sum of consecutive naturals, namely, 984575 + ... + 984578.

Almost surely, 2^3938306 is an apocalyptic number.

3938306 is a deficient number, since it is larger than the sum of its proper divisors (1969156).

3938306 is a wasteful number, since it uses less digits than its factorization.

3938306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969155.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 3938306 is about 1984.5165658165. The cubic root of 3938306 is about 157.9197637795.

The spelling of 3938306 in words is "three million, nine hundred thirty-eight thousand, three hundred six".