19880099 has 8 divisors (see below), whose sum is σ = 20978880. Its totient is φ = 18786600.

The previous prime is 19880059. The next prime is 19880101. The reversal of 19880099 is 99008891.

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 19880099 - 2¹⁶ = 19814563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19880059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8264 + ... + 10394.

It is an arithmetic number, because the mean of its divisors is an integer number (2622360).

Almost surely, 2^19880099 is an apocalyptic number.

19880099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

19880099 is a deficient number, since it is larger than the sum of its proper divisors (1098781).

19880099 is a wasteful number, since it uses less digits than its factorization.

19880099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its (nonzero) digits is 46656, while the sum is 44.

The square root of 19880099 is about 4458.7104638000. The cubic root of 19880099 is about 270.8982384140.

The spelling of 19880099 in words is "nineteen million, eight hundred eighty thousand, ninety-nine".