916667 has 4 divisors (see below), whose sum is σ = 923496. Its totient is φ = 909840.

The previous prime is 916651. The next prime is 916679. The reversal of 916667 is 766619.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766619 = 7 ⋅109517.

It is a cyclic number.

It is not a de Polignac number, because 916667 - 2⁴ = 916651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916367) 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, 3209 + ... + 3482.

It is an arithmetic number, because the mean of its divisors is an integer number (230874).

2⁹¹⁶⁶⁶⁷ is an apocalyptic number.

916667 is a deficient number, since it is larger than the sum of its proper divisors (6829).

916667 is a wasteful number, since it uses less digits than its factorization.

916667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6828.

The product of its digits is 13608, while the sum is 35.

The square root of 916667 is about 957.4272818340. The cubic root of 916667 is about 97.1412898289.

The spelling of 916667 in words is "nine hundred sixteen thousand, six hundred sixty-seven".