730006 has 4 divisors (see below), whose sum is σ = 1095012. Its totient is φ = 365002.

The previous prime is 730003. The next prime is 730021. The reversal of 730006 is 600037.

It is a happy number.

730006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 600037 = 193 ⋅3109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182500 + ... + 182503.

It is an arithmetic number, because the mean of its divisors is an integer number (273753).

2⁷³⁰⁰⁰⁶ is an apocalyptic number.

730006 is a deficient number, since it is larger than the sum of its proper divisors (365006).

730006 is a wasteful number, since it uses less digits than its factorization.

730006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365005.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 730006 is about 854.4038857590. The cubic root of 730006 is about 90.0413801483.

The spelling of 730006 in words is "seven hundred thirty thousand, six".