670908 has 48 divisors (see below), whose sum is σ = 1836800. Its totient is φ = 190512.

The previous prime is 670903. The next prime is 670919. The reversal of 670908 is 809076.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670903) by changing a digit.

670908 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 15 ways as a sum of consecutive naturals, for example, 4035 + ... + 4197.

2⁶⁷⁰⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (918400).

670908 is an abundant number, since it is smaller than the sum of its proper divisors (1165892).

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

670908 is a wasteful number, since it uses less digits than its factorization.

670908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 670908 is about 819.0897386734. The cubic root of 670908 is about 87.5429122846.

The spelling of 670908 in words is "six hundred seventy thousand, nine hundred eight".