199827694 has 8 divisors (see below), whose sum is σ = 326990808. Its totient is φ = 90830760.

The previous prime is 199827659. The next prime is 199827697. The reversal of 199827694 is 496728991.

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

It is a super-2 number, since 2×199827694² = 79862214578715272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199827697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4541517 + ... + 4541560.

It is an arithmetic number, because the mean of its divisors is an integer number (40873851).

Almost surely, 2^199827694 is an apocalyptic number.

199827694 is a deficient number, since it is larger than the sum of its proper divisors (127163114).

199827694 is a wasteful number, since it uses less digits than its factorization.

199827694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9083090.

The product of its digits is 1959552, while the sum is 55.

The square root of 199827694 is about 14136.0423740169. The cubic root of 199827694 is about 584.6355574570.

It can be divided in two parts, 1998 and 27694, that added together give a palindrome (29692).

The spelling of 199827694 in words is "one hundred ninety-nine million, eight hundred twenty-seven thousand, six hundred ninety-four".