3939198 has 32 divisors (see below), whose sum is σ = 8225280. Its totient is φ = 1256640.

The previous prime is 3939191. The next prime is 3939203. The reversal of 3939198 is 8919393.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16363 + ... + 16601.

It is an arithmetic number, because the mean of its divisors is an integer number (257040).

Almost surely, 2^3939198 is an apocalyptic number.

3939198 is an abundant number, since it is smaller than the sum of its proper divisors (4286082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3939198 is a wasteful number, since it uses less digits than its factorization.

3939198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352.

The product of its digits is 52488, while the sum is 42.

The square root of 3939198 is about 1984.7412929649. The cubic root of 3939198 is about 157.9316854700.

It can be divided in two parts, 393 and 9198, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 3939198 in words is "three million, nine hundred thirty-nine thousand, one hundred ninety-eight".