199385087 has 8 divisors (see below), whose sum is σ = 224527872. Its totient is φ = 175411800.

The previous prime is 199385071. The next prime is 199385093. The reversal of 199385087 is 780583991.

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

It is a cyclic number.

It is not a de Polignac number, because 199385087 - 2⁴ = 199385071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199381087) 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, 292013 + ... + 292694.

It is an arithmetic number, because the mean of its divisors is an integer number (28065984).

Almost surely, 2^199385087 is an apocalyptic number.

199385087 is a deficient number, since it is larger than the sum of its proper divisors (25142785).

199385087 is a wasteful number, since it uses less digits than its factorization.

199385087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584749.

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 199385087 is about 14120.3784297730. The cubic root of 199385087 is about 584.2035935160.

The spelling of 199385087 in words is "one hundred ninety-nine million, three hundred eighty-five thousand, eighty-seven".