912609 has 12 divisors (see below), whose sum is σ = 1361152. Its totient is φ = 588600.

The previous prime is 912581. The next prime is 912631. The reversal of 912609 is 906219.

It is a happy number.

It is not a de Polignac number, because 912609 - 2⁷ = 912481 is a prime.

It is a Duffinian number.

912609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (912649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1357 + ... + 1914.

2⁹¹²⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

912609 is a deficient number, since it is larger than the sum of its proper divisors (448543).

912609 is a wasteful number, since it uses less digits than its factorization.

912609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308 (or 3305 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 912609 is about 955.3057102310. The cubic root of 912609 is about 96.9977326143.

It can be divided in two parts, 912 and 609, that added together give a square (1521 = 39²).

The spelling of 912609 in words is "nine hundred twelve thousand, six hundred nine".