670946 has 4 divisors (see below), whose sum is σ = 1006422. Its totient is φ = 335472.

The previous prime is 670931. The next prime is 670951. The reversal of 670946 is 649076.

670946 is nontrivially palindromic in base 8.

670946 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.

It can be written as a sum of positive squares in only one way, i.e., 657721 + 13225 = 811^2 + 115^2 .

It is a super-3 number, since 3×670946³ = 906116333483251608, which contains 333 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167735 + ... + 167738.

2⁶⁷⁰⁹⁴⁶ is an apocalyptic number.

670946 is a deficient number, since it is larger than the sum of its proper divisors (335476).

670946 is a wasteful number, since it uses less digits than its factorization.

670946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335475.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 670946 is about 819.1129348264. The cubic root of 670946 is about 87.5445650536.

The spelling of 670946 in words is "six hundred seventy thousand, nine hundred forty-six".