199696719 has 8 divisors (see below), whose sum is σ = 266896432. Its totient is φ = 132814080.

The previous prime is 199696711. The next prime is 199696727. The reversal of 199696719 is 917696991.

It is an interprime number because it is at equal distance from previous prime (199696711) and next prime (199696727).

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

It is not a de Polignac number, because 199696719 - 2³ = 199696711 is a prime.

It is a super-2 number, since 2×199696719² = 79757559158729922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199696711) 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, 77794 + ... + 80319.

It is an arithmetic number, because the mean of its divisors is an integer number (33362054).

Almost surely, 2^199696719 is an apocalyptic number.

199696719 is a deficient number, since it is larger than the sum of its proper divisors (67199713).

199696719 is a wasteful number, since it uses less digits than its factorization.

199696719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158537.

The product of its digits is 1653372, while the sum is 57.

The square root of 199696719 is about 14131.4089531087. The cubic root of 199696719 is about 584.5077984257.

The spelling of 199696719 in words is "one hundred ninety-nine million, six hundred ninety-six thousand, seven hundred nineteen".