918023 has 6 divisors (see below), whose sum is σ = 969264. Its totient is φ = 869364.

The previous prime is 918019. The next prime is 918041. The reversal of 918023 is 320819.

It is not a de Polignac number, because 918023 - 2² = 918019 is a prime.

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 918023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 911 + ... + 1632.

It is an arithmetic number, because the mean of its divisors is an integer number (161544).

2⁹¹⁸⁰²³ is an apocalyptic number.

918023 is a deficient number, since it is larger than the sum of its proper divisors (51241).

918023 is a wasteful number, since it uses less digits than its factorization.

918023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581 (or 2562 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 918023 is about 958.1351679173. The cubic root of 918023 is about 97.1891656990.

The spelling of 918023 in words is "nine hundred eighteen thousand, twenty-three".