918349 has 4 divisors (see below), whose sum is σ = 921564. Its totient is φ = 915136.

The previous prime is 918347. The next prime is 918353. The reversal of 918349 is 943819.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75625 + 842724 = 275^2 + 918^2 .

It is a cyclic number.

It is not a de Polignac number, because 918349 - 2¹ = 918347 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 (918341) 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, 1132 + ... + 1765.

It is an arithmetic number, because the mean of its divisors is an integer number (230391).

2⁹¹⁸³⁴⁹ is an apocalyptic number.

It is an amenable number.

918349 is a deficient number, since it is larger than the sum of its proper divisors (3215).

918349 is a wasteful number, since it uses less digits than its factorization.

918349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214.

The product of its digits is 7776, while the sum is 34.

The square root of 918349 is about 958.3052749516. The cubic root of 918349 is about 97.2006686491.

The spelling of 918349 in words is "nine hundred eighteen thousand, three hundred forty-nine".