19898696 has 16 divisors (see below), whose sum is σ = 37368240. Its totient is φ = 9933840.

The previous prime is 19898693. The next prime is 19898701. The reversal of 19898696 is 69689891.

It is not an unprimeable number, because it can be changed into a prime (19898693) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4955 + ... + 8021.

It is an arithmetic number, because the mean of its divisors is an integer number (2335515).

Almost surely, 2^19898696 is an apocalyptic number.

It is an amenable number.

19898696 is a deficient number, since it is larger than the sum of its proper divisors (17469544).

19898696 is a wasteful number, since it uses less digits than its factorization.

19898696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884 (or 3880 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 56.

The square root of 19898696 is about 4460.7954447609. The cubic root of 19898696 is about 270.9826834067.

The spelling of 19898696 in words is "nineteen million, eight hundred ninety-eight thousand, six hundred ninety-six".