730085081 has 6 divisors (see below), whose sum is σ = 802490346. Its totient is φ = 663713600.

The previous prime is 730085071. The next prime is 730085087. The reversal of 730085081 is 180580037.

730085081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 671639056 + 58446025 = 25916^2 + 7645^2 .

It is not a de Polignac number, because 730085081 - 2¹⁴ = 730068697 is a prime.

It is a super-2 number, since 2×730085081² = 1066048450997553122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730085087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3016760 + ... + 3017001.

It is an arithmetic number, because the mean of its divisors is an integer number (133748391).

Almost surely, 2^730085081 is an apocalyptic number.

It is an amenable number.

730085081 is a deficient number, since it is larger than the sum of its proper divisors (72405265).

730085081 is a wasteful number, since it uses less digits than its factorization.

730085081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6033783 (or 6033772 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 730085081 is about 27020.0866208826. The cubic root of 730085081 is about 900.4463140252.

The spelling of 730085081 in words is "seven hundred thirty million, eighty-five thousand, eighty-one".