199960895 has 16 divisors (see below), whose sum is σ = 246945888. Its totient is φ = 155343360.

The previous prime is 199960847. The next prime is 199960933. The reversal of 199960895 is 598069991.

It is not a de Polignac number, because 199960895 - 2⁸ = 199960639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199960895.

It is a congruent number.

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, 44387 + ... + 48683.

It is an arithmetic number, because the mean of its divisors is an integer number (15434118).

Almost surely, 2^199960895 is an apocalyptic number.

199960895 is a deficient number, since it is larger than the sum of its proper divisors (46984993).

199960895 is a wasteful number, since it uses less digits than its factorization.

199960895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570.

The product of its (nonzero) digits is 1574640, while the sum is 56.

The square root of 199960895 is about 14140.7529856087. The cubic root of 199960895 is about 584.7654305870.

The spelling of 199960895 in words is "one hundred ninety-nine million, nine hundred sixty thousand, eight hundred ninety-five".