730081 has 8 divisors (see below), whose sum is σ = 822528. Its totient is φ = 642000.

The previous prime is 730069. The next prime is 730091. The reversal of 730081 is 180037.

730081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 730081 - 2⁵ = 730049 is a prime.

It is a super-2 number, since 2×730081² = 1066036533122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730 + ... + 1411.

It is an arithmetic number, because the mean of its divisors is an integer number (102816).

2⁷³⁰⁰⁸¹ is an apocalyptic number.

It is an amenable number.

730081 is a deficient number, since it is larger than the sum of its proper divisors (92447).

730081 is a wasteful number, since it uses less digits than its factorization.

730081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 730081 is about 854.4477748815. The cubic root of 730081 is about 90.0444636263.

It can be divided in two parts, 7300 and 81, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 730081 in words is "seven hundred thirty thousand, eighty-one".