3123198 has 40 divisors (see below), whose sum is σ = 7541688. Its totient is φ = 960336.

The previous prime is 3123187. The next prime is 3123203. The reversal of 3123198 is 8913213.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1365 + ... + 2847.

Almost surely, 2^3123198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3770844).

3123198 is an abundant number, since it is smaller than the sum of its proper divisors (4418490).

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

3123198 is a wasteful number, since it uses less digits than its factorization.

3123198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 1501 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 3123198 is about 1767.2571969015. The cubic root of 3123198 is about 146.1727797476.

It can be divided in two parts, 31231 and 98, that added together give a square (31329 = 177²).

The spelling of 3123198 in words is "three million, one hundred twenty-three thousand, one hundred ninety-eight".