10019989 has 8 divisors (see below), whose sum is σ = 11718080. Its totient is φ = 8388576.

The previous prime is 10019983. The next prime is 10020013. The reversal of 10019989 is 98991001.

10019989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10019989 - 2⁵ = 10019957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10019983) 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 7 ways as a sum of consecutive naturals, for example, 16344 + ... + 16945.

It is an arithmetic number, because the mean of its divisors is an integer number (1464760).

Almost surely, 2^10019989 is an apocalyptic number.

It is an amenable number.

10019989 is a deficient number, since it is larger than the sum of its proper divisors (1698091).

10019989 is an equidigital number, since it uses as much as digits as its factorization.

10019989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33339.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 10019989 is about 3165.4366207523. The cubic root of 10019989 is about 215.5869234453.

The spelling of 10019989 in words is "ten million, nineteen thousand, nine hundred eighty-nine".