670506 has 8 divisors (see below), whose sum is σ = 1341024. Its totient is φ = 223500.

The previous prime is 670493. The next prime is 670507. The reversal of 670506 is 605076.

670506 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.

670506 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (670507) by changing a digit.

670506 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55870 + ... + 55881.

It is an arithmetic number, because the mean of its divisors is an integer number (167628).

2⁶⁷⁰⁵⁰⁶ is an apocalyptic number.

670506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

670506 is a wasteful number, since it uses less digits than its factorization.

670506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111756.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 670506 is about 818.8443075457. The cubic root of 670506 is about 87.5254239047.

It can be divided in two parts, 670 and 506, that added together give a triangular number (1176 = T₄₈).

The spelling of 670506 in words is "six hundred seventy thousand, five hundred six".