706530 has 32 divisors (see below), whose sum is σ = 1850688. Its totient is φ = 171200.

The previous prime is 706523. The next prime is 706547. The reversal of 706530 is 35607.

706530 = T₁₃₂ + T₁₃₃ + ... + T₁₈₆.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 706497 and 706506.

It is an unprimeable number.

706530 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741 + ... + 1400.

It is an arithmetic number, because the mean of its divisors is an integer number (57834).

2⁷⁰⁶⁵³⁰ is an apocalyptic number.

706530 is an abundant number, since it is smaller than the sum of its proper divisors (1144158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

706530 is a wasteful number, since it uses less digits than its factorization.

706530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 706530 is about 840.5533891431. The cubic root of 706530 is about 89.0656419329.

The spelling of 706530 in words is "seven hundred six thousand, five hundred thirty".