730329685 has 4 divisors (see below), whose sum is σ = 876395628. Its totient is φ = 584263744.

The previous prime is 730329667. The next prime is 730329701. The reversal of 730329685 is 586923037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 586923037 = 1847 ⋅317771.

It can be written as a sum of positive squares in 2 ways, for example, as 495596644 + 234733041 = 22262^2 + 15321^2 .

It is a cyclic number.

It is not a de Polignac number, because 730329685 - 2¹⁷ = 730198613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73032964 + ... + 73032973.

It is an arithmetic number, because the mean of its divisors is an integer number (219098907).

Almost surely, 2^730329685 is an apocalyptic number.

It is an amenable number.

730329685 is a deficient number, since it is larger than the sum of its proper divisors (146065943).

730329685 is a wasteful number, since it uses less digits than its factorization.

730329685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146065942.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 730329685 is about 27024.6125781666. The cubic root of 730329685 is about 900.5468631179.

The spelling of 730329685 in words is "seven hundred thirty million, three hundred twenty-nine thousand, six hundred eighty-five".