918906 has 8 divisors (see below), whose sum is σ = 1837824. Its totient is φ = 306300.

The previous prime is 918899. The next prime is 918913. The reversal of 918906 is 609819.

It is a happy number.

918906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (918899) and next prime (918913).

It is a sphenic number, since it is the product of 3 distinct primes.

918906 is an admirable 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, 76570 + ... + 76581.

It is an arithmetic number, because the mean of its divisors is an integer number (229728).

2⁹¹⁸⁹⁰⁶ is an apocalyptic number.

918906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

918906 is a wasteful number, since it uses less digits than its factorization.

918906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153156.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 918906 is about 958.5958481028. The cubic root of 918906 is about 97.2203161652.

It can be divided in two parts, 9 and 18906, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 918906 in words is "nine hundred eighteen thousand, nine hundred six".