199698 has 16 divisors (see below), whose sum is σ = 405216. Its totient is φ = 65600.

The previous prime is 199697. The next prime is 199721. The reversal of 199698 is 896991.

It is not an unprimeable number, because it can be changed into a prime (199697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (25326).

2¹⁹⁹⁶⁹⁸ is an apocalyptic number.

199698 is an abundant number, since it is smaller than the sum of its proper divisors (205518).

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

199698 is a wasteful number, since it uses less digits than its factorization.

199698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489.

The product of its digits is 34992, while the sum is 42.

The square root of 199698 is about 446.8758216776. The cubic root of 199698 is about 58.4509048242.

It can be divided in two parts, 1 and 99698, that added together give a palindrome (99699).

The spelling of 199698 in words is "one hundred ninety-nine thousand, six hundred ninety-eight".