918485 has 4 divisors (see below), whose sum is σ = 1102188. Its totient is φ = 734784.

The previous prime is 918481. The next prime is 918497. The reversal of 918485 is 584819.

918485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584819 = 89 ⋅6571.

It can be written as a sum of positive squares in 2 ways, for example, as 128164 + 790321 = 358^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 918485 - 2² = 918481 is a prime.

It is a super-2 number, since 2×918485² = 1687229390450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 918485.

It is not an unprimeable number, because it can be changed into a prime (918481) 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, 91844 + ... + 91853.

It is an arithmetic number, because the mean of its divisors is an integer number (275547).

2⁹¹⁸⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

918485 is a deficient number, since it is larger than the sum of its proper divisors (183703).

918485 is a wasteful number, since it uses less digits than its factorization.

918485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183702.

The product of its digits is 11520, while the sum is 35.

The square root of 918485 is about 958.3762309240. The cubic root of 918485 is about 97.2054666211.

The spelling of 918485 in words is "nine hundred eighteen thousand, four hundred eighty-five".