199964835 has 192 divisors, whose sum is σ = 457459200. Its totient is φ = 82301184.

The previous prime is 199964833. The next prime is 199964851. The reversal of 199964835 is 538469991.

It is not a de Polignac number, because 199964835 - 2¹ = 199964833 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199964833) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4650324 + ... + 4650366.

It is an arithmetic number, because the mean of its divisors is an integer number (2382600).

Almost surely, 2^199964835 is an apocalyptic number.

199964835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199964835 is an abundant number, since it is smaller than the sum of its proper divisors (257494365).

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

199964835 is a wasteful number, since it uses less digits than its factorization.

199964835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 114 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 199964835 is about 14140.8922985786. The cubic root of 199964835 is about 584.7692712724.

The spelling of 199964835 in words is "one hundred ninety-nine million, nine hundred sixty-four thousand, eight hundred thirty-five".