198469831 has 8 divisors (see below), whose sum is σ = 227661824. Its totient is φ = 169487640.

The previous prime is 198469787. The next prime is 198469837. The reversal of 198469831 is 138964891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198469831 - 2¹¹ = 198467783 is a prime.

It is a super-2 number, since 2×198469831² = 78780547634337122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198469837) 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, 50415 + ... + 54208.

It is an arithmetic number, because the mean of its divisors is an integer number (28457728).

Almost surely, 2^198469831 is an apocalyptic number.

198469831 is a deficient number, since it is larger than the sum of its proper divisors (29191993).

198469831 is a wasteful number, since it uses less digits than its factorization.

198469831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104901.

The product of its digits is 373248, while the sum is 49.

The square root of 198469831 is about 14087.9321051743. The cubic root of 198469831 is about 583.3083141015.

The spelling of 198469831 in words is "one hundred ninety-eight million, four hundred sixty-nine thousand, eight hundred thirty-one".