918706 has 4 divisors (see below), whose sum is σ = 1378062. Its totient is φ = 459352.

The previous prime is 918683. The next prime is 918733. The reversal of 918706 is 607819.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 502681 + 416025 = 709^2 + 645^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229675 + ... + 229678.

2⁹¹⁸⁷⁰⁶ is an apocalyptic number.

918706 is a deficient number, since it is larger than the sum of its proper divisors (459356).

918706 is a wasteful number, since it uses less digits than its factorization.

918706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459355.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 918706 is about 958.4915231759. The cubic root of 918706 is about 97.2132623156.

The spelling of 918706 in words is "nine hundred eighteen thousand, seven hundred six".