730427 has 4 divisors (see below), whose sum is σ = 746016. Its totient is φ = 714840.

The previous prime is 730421. The next prime is 730447. The reversal of 730427 is 724037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724037 = 131 ⋅5527.

It is a cyclic number.

It is not a de Polignac number, because 730427 - 2⁶ = 730363 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

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 3 ways as a sum of consecutive naturals, for example, 7724 + ... + 7817.

It is an arithmetic number, because the mean of its divisors is an integer number (186504).

2⁷³⁰⁴²⁷ is an apocalyptic number.

730427 is a deficient number, since it is larger than the sum of its proper divisors (15589).

730427 is a wasteful number, since it uses less digits than its factorization.

730427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15588.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 730427 is about 854.6502208506. The cubic root of 730427 is about 90.0586860043.

The spelling of 730427 in words is "seven hundred thirty thousand, four hundred twenty-seven".