729198 has 24 divisors (see below), whose sum is σ = 1673568. Its totient is φ = 228672.

The previous prime is 729191. The next prime is 729199. The reversal of 729198 is 891927.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 729198.

It is not an unprimeable number, because it can be changed into a prime (729191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 886 + ... + 1497.

It is an arithmetic number, because the mean of its divisors is an integer number (69732).

2⁷²⁹¹⁹⁸ is an apocalyptic number.

729198 is an abundant number, since it is smaller than the sum of its proper divisors (944370).

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

729198 is a wasteful number, since it uses less digits than its factorization.

729198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408 (or 2405 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 729198 is about 853.9309105542. The cubic root of 729198 is about 90.0081474106.

It can be divided in two parts, 72919 and 8, that added together give a palindrome (72927).

The spelling of 729198 in words is "seven hundred twenty-nine thousand, one hundred ninety-eight".