730608321 has 8 divisors (see below), whose sum is σ = 974350080. Its totient is φ = 486969392.

The previous prime is 730608301. The next prime is 730608323. The reversal of 730608321 is 123806037.

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 730608321 - 2⁵ = 730608289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730608323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7230 + ... + 38903.

It is an arithmetic number, because the mean of its divisors is an integer number (121793760).

Almost surely, 2^730608321 is an apocalyptic number.

It is an amenable number.

730608321 is a deficient number, since it is larger than the sum of its proper divisors (243741759).

730608321 is a wasteful number, since it uses less digits than its factorization.

730608321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51415.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 730608321 is about 27029.7673130939. The cubic root of 730608321 is about 900.6613743570.

The spelling of 730608321 in words is "seven hundred thirty million, six hundred eight thousand, three hundred twenty-one".