19999795 has 8 divisors (see below), whose sum is σ = 24648624. Its totient is φ = 15567264.

The previous prime is 19999789. The next prime is 19999817. The reversal of 19999795 is 59799991.

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 19999795 - 2⁹ = 19999283 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53869 + ... + 54238.

It is an arithmetic number, because the mean of its divisors is an integer number (3081078).

Almost surely, 2^19999795 is an apocalyptic number.

19999795 is a deficient number, since it is larger than the sum of its proper divisors (4648829).

19999795 is a wasteful number, since it uses less digits than its factorization.

19999795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108149.

The product of its digits is 2066715, while the sum is 58.

The square root of 19999795 is about 4472.1130352441. The cubic root of 19999795 is about 271.4408342303.

The spelling of 19999795 in words is "nineteen million, nine hundred ninety-nine thousand, seven hundred ninety-five".