730507 has 8 divisors (see below), whose sum is σ = 783216. Its totient is φ = 678912.

The previous prime is 730487. The next prime is 730537. The reversal of 730507 is 705037.

730507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-730507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428 + ... + 1870.

It is an arithmetic number, because the mean of its divisors is an integer number (97902).

2⁷³⁰⁵⁰⁷ is an apocalyptic number.

730507 is a deficient number, since it is larger than the sum of its proper divisors (52709).

730507 is a wasteful number, since it uses less digits than its factorization.

730507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 735, while the sum is 22.

The square root of 730507 is about 854.6970223418. The cubic root of 730507 is about 90.0619737761.

The spelling of 730507 in words is "seven hundred thirty thousand, five hundred seven".