918842873 has 16 divisors (see below), whose sum is σ = 1025498880. Its totient is φ = 817432896.

The previous prime is 918842863. The next prime is 918842921. The reversal of 918842873 is 378248819.

It is a cyclic number.

It is not a de Polignac number, because 918842873 - 2⁴ = 918842857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918842803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242036 + ... + 245802.

It is an arithmetic number, because the mean of its divisors is an integer number (64093680).

Almost surely, 2^918842873 is an apocalyptic number.

It is an amenable number.

918842873 is a deficient number, since it is larger than the sum of its proper divisors (106656007).

918842873 is a wasteful number, since it uses less digits than its factorization.

918842873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4456.

The product of its digits is 774144, while the sum is 50.

The square root of 918842873 is about 30312.4211009282. The cubic root of 918842873 is about 972.1808983395.

The spelling of 918842873 in words is "nine hundred eighteen million, eight hundred forty-two thousand, eight hundred seventy-three".