730817 has 4 divisors (see below), whose sum is σ = 744660. Its totient is φ = 716976.

The previous prime is 730811. The next prime is 730819. The reversal of 730817 is 718037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 718037 = 23 ⋅31219.

It can be written as a sum of positive squares in 2 ways, for example, as 638401 + 92416 = 799^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 730817 - 2⁶ = 730753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730811) 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, 6842 + ... + 6947.

It is an arithmetic number, because the mean of its divisors is an integer number (186165).

2⁷³⁰⁸¹⁷ is an apocalyptic number.

It is an amenable number.

730817 is a deficient number, since it is larger than the sum of its proper divisors (13843).

730817 is a wasteful number, since it uses less digits than its factorization.

730817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13842.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 730817 is about 854.8783539194. The cubic root of 730817 is about 90.0747116251.

The spelling of 730817 in words is "seven hundred thirty thousand, eight hundred seventeen".