730615 has 8 divisors (see below), whose sum is σ = 895680. Its totient is φ = 571872.

The previous prime is 730603. The next prime is 730619. The reversal of 730615 is 516037.

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 730615 - 2⁷ = 730487 is a prime.

730615 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730619) 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, 1320 + ... + 1789.

It is an arithmetic number, because the mean of its divisors is an integer number (111960).

2⁷³⁰⁶¹⁵ is an apocalyptic number.

730615 is a deficient number, since it is larger than the sum of its proper divisors (165065).

730615 is a wasteful number, since it uses less digits than its factorization.

730615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 730615 is about 854.7602002901. The cubic root of 730615 is about 90.0664118873.

The spelling of 730615 in words is "seven hundred thirty thousand, six hundred fifteen".