730806 has 12 divisors (see below), whose sum is σ = 1465812. Its totient is φ = 242904.

The previous prime is 730799. The next prime is 730811. The reversal of 730806 is 608037.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1920 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (122151).

2⁷³⁰⁸⁰⁶ is an apocalyptic number.

730806 is an abundant number, since it is smaller than the sum of its proper divisors (735006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

730806 is an equidigital number, since it uses as much as digits as its factorization.

730806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 730806 is about 854.8719202313. The cubic root of 730806 is about 90.0742596985.

Multiplying 730806 by its sum of digits (24), we get a square (17539344 = 4188²).

The spelling of 730806 in words is "seven hundred thirty thousand, eight hundred six".