730423 has 8 divisors (see below), whose sum is σ = 766800. Its totient is φ = 694848.

The previous prime is 730421. The next prime is 730447. The reversal of 730423 is 324037.

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 730423 - 2¹ = 730421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 730423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2440 + ... + 2722.

It is an arithmetic number, because the mean of its divisors is an integer number (95850).

2⁷³⁰⁴²³ is an apocalyptic number.

730423 is a deficient number, since it is larger than the sum of its proper divisors (36377).

730423 is a wasteful number, since it uses less digits than its factorization.

730423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 730423 is about 854.6478807088. The cubic root of 730423 is about 90.0585216094.

The spelling of 730423 in words is "seven hundred thirty thousand, four hundred twenty-three".