199531696 has 80 divisors (see below), whose sum is σ = 487024384. Its totient is φ = 77075712.

The previous prime is 199531663. The next prime is 199531727. The reversal of 199531696 is 696135991.

199531696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61015 + ... + 64201.

Almost surely, 2^199531696 is an apocalyptic number.

199531696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199531696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243512192).

199531696 is an abundant number, since it is smaller than the sum of its proper divisors (287492688).

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

199531696 is a wasteful number, since it uses less digits than its factorization.

199531696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258 (or 3252 counting only the distinct ones).

The product of its digits is 393660, while the sum is 49.

The square root of 199531696 is about 14125.5688735003. The cubic root of 199531696 is about 584.3467478539.

The spelling of 199531696 in words is "one hundred ninety-nine million, five hundred thirty-one thousand, six hundred ninety-six".