916729 has 4 divisors (see below), whose sum is σ = 1000080. Its totient is φ = 833380.

The previous prime is 916703. The next prime is 916733. The reversal of 916729 is 927619.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 916729 - 2⁹ = 916217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 916694 and 916703.

It is not an unprimeable number, because it can be changed into a prime (916129) 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, 41659 + ... + 41680.

It is an arithmetic number, because the mean of its divisors is an integer number (250020).

2⁹¹⁶⁷²⁹ is an apocalyptic number.

It is an amenable number.

916729 is a deficient number, since it is larger than the sum of its proper divisors (83351).

916729 is a wasteful number, since it uses less digits than its factorization.

916729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83350.

The product of its digits is 6804, while the sum is 34.

The square root of 916729 is about 957.4596597246. The cubic root of 916729 is about 97.1434798733.

The spelling of 916729 in words is "nine hundred sixteen thousand, seven hundred twenty-nine".