3109198 has 16 divisors (see below), whose sum is σ = 5199120. Its totient is φ = 1385856.

The previous prime is 3109193. The next prime is 3109199. The reversal of 3109198 is 8919013.

It is a super-2 number, since 2×3109198² = 19334224406408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3109193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1761 + ... + 3052.

It is an arithmetic number, because the mean of its divisors is an integer number (324945).

Almost surely, 2^3109198 is an apocalyptic number.

3109198 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3109198 is a deficient number, since it is larger than the sum of its proper divisors (2089922).

3109198 is a wasteful number, since it uses less digits than its factorization.

3109198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4851.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 3109198 is about 1763.2918079547. The cubic root of 3109198 is about 145.9540419556.

The spelling of 3109198 in words is "three million, one hundred nine thousand, one hundred ninety-eight".