912989999 has 8 divisors (see below), whose sum is σ = 918485568. Its totient is φ = 907503520.

The previous prime is 912989971. The next prime is 912990007. The reversal of 912989999 is 999989219.

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 912989999 - 2¹² = 912985903 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 (912989929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367349 + ... + 369825.

It is an arithmetic number, because the mean of its divisors is an integer number (114810696).

Almost surely, 2^912989999 is an apocalyptic number.

912989999 is a deficient number, since it is larger than the sum of its proper divisors (5495569).

912989999 is a wasteful number, since it uses less digits than its factorization.

912989999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545.

The product of its digits is 8503056, while the sum is 65.

The square root of 912989999 is about 30215.7243666274. The cubic root of 912989999 is about 970.1122904687.

The spelling of 912989999 in words is "nine hundred twelve million, nine hundred eighty-nine thousand, nine hundred ninety-nine".