912489 has 4 divisors (see below), whose sum is σ = 1216656. Its totient is φ = 608324.

The previous prime is 912487. The next prime is 912491. The reversal of 912489 is 984219.

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 an interprime number because it is at equal distance from previous prime (912487) and next prime (912491).

It is a cyclic number.

It is not a de Polignac number, because 912489 - 2¹ = 912487 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (912481) 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, 152079 + ... + 152084.

It is an arithmetic number, because the mean of its divisors is an integer number (304164).

2⁹¹²⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

912489 is a deficient number, since it is larger than the sum of its proper divisors (304167).

912489 is a wasteful number, since it uses less digits than its factorization.

912489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304166.

The product of its digits is 5184, while the sum is 33.

The square root of 912489 is about 955.2429010466. The cubic root of 912489 is about 96.9934809804.

The spelling of 912489 in words is "nine hundred twelve thousand, four hundred eighty-nine".