670448 has 10 divisors (see below), whose sum is σ = 1299024. Its totient is φ = 335216.

The previous prime is 670447. The next prime is 670457. The reversal of 670448 is 844076.

670448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 670448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20936 + ... + 20967.

2⁶⁷⁰⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

670448 is a deficient number, since it is larger than the sum of its proper divisors (628576).

670448 is a wasteful number, since it uses less digits than its factorization.

670448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41911 (or 41905 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 670448 is about 818.8088910118. The cubic root of 670448 is about 87.5229001286.

The spelling of 670448 in words is "six hundred seventy thousand, four hundred forty-eight".