730765 has 8 divisors (see below), whose sum is σ = 1002240. Its totient is φ = 501072.

The previous prime is 730757. The next prime is 730777. The reversal of 730765 is 567037.

730765 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 730765 - 2³ = 730757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10405 + ... + 10474.

It is an arithmetic number, because the mean of its divisors is an integer number (125280).

2⁷³⁰⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

730765 is a deficient number, since it is larger than the sum of its proper divisors (271475).

730765 is a wasteful number, since it uses less digits than its factorization.

730765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20891.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 730765 is about 854.8479396945. The cubic root of 730765 is about 90.0725752051.

The spelling of 730765 in words is "seven hundred thirty thousand, seven hundred sixty-five".