730606 has 4 divisors (see below), whose sum is σ = 1095912. Its totient is φ = 365302.

The previous prime is 730603. The next prime is 730619. The reversal of 730606 is 606037.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182650 + ... + 182653.

It is an arithmetic number, because the mean of its divisors is an integer number (273978).

2⁷³⁰⁶⁰⁶ is an apocalyptic number.

730606 is a deficient number, since it is larger than the sum of its proper divisors (365306).

730606 is a wasteful number, since it uses less digits than its factorization.

730606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365305.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 730606 is about 854.7549356394. The cubic root of 730606 is about 90.0660420614.

The spelling of 730606 in words is "seven hundred thirty thousand, six hundred six".