670570 has 8 divisors (see below), whose sum is σ = 1207044. Its totient is φ = 268224.

The previous prime is 670559. The next prime is 670577. The reversal of 670570 is 75076.

It can be written as a sum of positive squares in 2 ways, for example, as 651249 + 19321 = 807^2 + 139^2 .

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

It is not an unprimeable number, because it can be changed into a prime (670577) by changing a digit.

670570 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 3 ways as a sum of consecutive naturals, for example, 33519 + ... + 33538.

2⁶⁷⁰⁵⁷⁰ is an apocalyptic number.

670570 is a deficient number, since it is larger than the sum of its proper divisors (536474).

670570 is a wasteful number, since it uses less digits than its factorization.

670570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67064.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 670570 is about 818.8833860813. The cubic root of 670570 is about 87.5282085921.

The spelling of 670570 in words is "six hundred seventy thousand, five hundred seventy".