912989 has 16 divisors (see below), whose sum is σ = 1161216. Its totient is φ = 697200.

The previous prime is 912979. The next prime is 912991. The reversal of 912989 is 989219.

It is not a de Polignac number, because 912989 - 2⁴ = 912973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5384 + ... + 5550.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2⁹¹²⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

912989 is a deficient number, since it is larger than the sum of its proper divisors (248227).

912989 is a wasteful number, since it uses less digits than its factorization.

912989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256.

The product of its digits is 11664, while the sum is 38.

The square root of 912989 is about 955.5045787436. The cubic root of 912989 is about 97.0111936634.

The spelling of 912989 in words is "nine hundred twelve thousand, nine hundred eighty-nine".