199694885 has 8 divisors (see below), whose sum is σ = 258067320. Its totient is φ = 147466944.

The previous prime is 199694879. The next prime is 199694897. The reversal of 199694885 is 588496991.

It can be written as a sum of positive squares in 4 ways, for example, as 574564 + 199120321 = 758^2 + 14111^2 .

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 199694885 - 2⁶ = 199694821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1536050 + ... + 1536179.

It is an arithmetic number, because the mean of its divisors is an integer number (32258415).

Almost surely, 2^199694885 is an apocalyptic number.

It is an amenable number.

199694885 is a deficient number, since it is larger than the sum of its proper divisors (58372435).

199694885 is a wasteful number, since it uses less digits than its factorization.

199694885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072247.

The product of its digits is 5598720, while the sum is 59.

The square root of 199694885 is about 14131.3440620487. The cubic root of 199694885 is about 584.5060090614.

The spelling of 199694885 in words is "one hundred ninety-nine million, six hundred ninety-four thousand, eight hundred eighty-five".