918679 has 2 divisors, whose sum is σ = 918680. Its totient is φ = 918678.

The previous prime is 918677. The next prime is 918683. The reversal of 918679 is 976819.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 918679 - 2¹ = 918677 is a prime.

It is a super-2 number, since 2×918679² = 1687942210082, which contains 22 as substring.

Together with 918677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459339 + 459340.

It is an arithmetic number, because the mean of its divisors is an integer number (459340).

2⁹¹⁸⁶⁷⁹ is an apocalyptic number.

918679 is a deficient number, since it is larger than the sum of its proper divisors (1).

918679 is an equidigital number, since it uses as much as digits as its factorization.

918679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 40.

The square root of 918679 is about 958.4774384408. The cubic root of 918679 is about 97.2123099675.

The spelling of 918679 in words is "nine hundred eighteen thousand, six hundred seventy-nine".