912889 has 4 divisors (see below), whose sum is σ = 921856. Its totient is φ = 903924.

The previous prime is 912871. The next prime is 912911. The reversal of 912889 is 988219.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 912889 - 2¹³ = 904697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (912809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4329 + ... + 4534.

It is an arithmetic number, because the mean of its divisors is an integer number (230464).

2⁹¹²⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

912889 is a deficient number, since it is larger than the sum of its proper divisors (8967).

912889 is a wasteful number, since it uses less digits than its factorization.

912889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8966.

The product of its digits is 10368, while the sum is 37.

The square root of 912889 is about 955.4522489376. The cubic root of 912889 is about 97.0076516442.

The spelling of 912889 in words is "nine hundred twelve thousand, eight hundred eighty-nine".