3969238 has 32 divisors (see below), whose sum is σ = 7430976. Its totient is φ = 1548288.

The previous prime is 3969221. The next prime is 3969241. The reversal of 3969238 is 8329693.

3969238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 3¹² + 9 + 6⁸ + 9 + 2¹⁷ + 3¹³ + 8⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 3969238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20470 + ... + 20662.

It is an arithmetic number, because the mean of its divisors is an integer number (232218).

Almost surely, 2^3969238 is an apocalyptic number.

3969238 is a deficient number, since it is larger than the sum of its proper divisors (3461738).

3969238 is a wasteful number, since it uses less digits than its factorization.

3969238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328.

The product of its digits is 69984, while the sum is 40.

The square root of 3969238 is about 1992.2946569220. The cubic root of 3969238 is about 158.3321272915.

The spelling of 3969238 in words is "three million, nine hundred sixty-nine thousand, two hundred thirty-eight".