670412 has 12 divisors (see below), whose sum is σ = 1242360. Its totient is φ = 315456.

The previous prime is 670409. The next prime is 670447. The reversal of 670412 is 214076.

670412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4862 + ... + 4997.

It is an arithmetic number, because the mean of its divisors is an integer number (103530).

2⁶⁷⁰⁴¹² is an apocalyptic number.

It is an amenable number.

670412 is a deficient number, since it is larger than the sum of its proper divisors (571948).

670412 is a wasteful number, since it uses less digits than its factorization.

670412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9880 (or 9878 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 670412 is about 818.7869075651. The cubic root of 670412 is about 87.5213335737.

Subtracting from 670412 its product of nonzero digits (336), we obtain a palindrome (670076).

Adding to 670412 its reverse (214076), we get a palindrome (884488).

The spelling of 670412 in words is "six hundred seventy thousand, four hundred twelve".