918383885 has 4 divisors (see below), whose sum is σ = 1102060668. Its totient is φ = 734707104.

The previous prime is 918383849. The next prime is 918383909. The reversal of 918383885 is 588383819.

918383885 is digitally balanced in base 6, 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: 588383819 = 1471 ⋅399989.

It can be written as a sum of positive squares in 2 ways, for example, as 703204324 + 215179561 = 26518^2 + 14669^2 .

It is a cyclic number.

It is not a de Polignac number, because 918383885 - 2¹² = 918379789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91838384 + ... + 91838393.

It is an arithmetic number, because the mean of its divisors is an integer number (275515167).

Almost surely, 2^918383885 is an apocalyptic number.

It is an amenable number.

918383885 is a deficient number, since it is larger than the sum of its proper divisors (183676783).

918383885 is a wasteful number, since it uses less digits than its factorization.

918383885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183676782.

The product of its digits is 1658880, while the sum is 53.

The square root of 918383885 is about 30304.8491994268. The cubic root of 918383885 is about 972.0189940939.

The spelling of 918383885 in words is "nine hundred eighteen million, three hundred eighty-three thousand, eight hundred eighty-five".