918713 has 4 divisors (see below), whose sum is σ = 920820. Its totient is φ = 916608.

The previous prime is 918683. The next prime is 918733. The reversal of 918713 is 317819.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317819 = 89 ⋅3571.

It can be written as a sum of positive squares in 2 ways, for example, as 94249 + 824464 = 307^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 918713 - 2¹⁰ = 917689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (918733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128 + ... + 1361.

It is an arithmetic number, because the mean of its divisors is an integer number (230205).

2⁹¹⁸⁷¹³ is an apocalyptic number.

It is an amenable number.

918713 is a deficient number, since it is larger than the sum of its proper divisors (2107).

918713 is a wasteful number, since it uses less digits than its factorization.

918713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106.

The product of its digits is 1512, while the sum is 29.

The square root of 918713 is about 958.4951747401. The cubic root of 918713 is about 97.2135092177.

The spelling of 918713 in words is "nine hundred eighteen thousand, seven hundred thirteen".