918049 has 4 divisors (see below), whose sum is σ = 1001520. Its totient is φ = 834580.

The previous prime is 918041. The next prime is 918067. The reversal of 918049 is 940819.

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 918049 - 2³ = 918041 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 918049.

It is not an unprimeable number, because it can be changed into a prime (918041) 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, 41719 + ... + 41740.

It is an arithmetic number, because the mean of its divisors is an integer number (250380).

2⁹¹⁸⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

918049 is a deficient number, since it is larger than the sum of its proper divisors (83471).

918049 is a wasteful number, since it uses less digits than its factorization.

918049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83470.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 918049 is about 958.1487358443. The cubic root of 918049 is about 97.1900832121.

It can be divided in two parts, 9180 and 49, that added together give a palindrome (9229).

The spelling of 918049 in words is "nine hundred eighteen thousand, forty-nine".