670067208 has 64 divisors (see below), whose sum is σ = 1873248000. Its totient is φ = 221921856.

The previous prime is 670067197. The next prime is 670067213. The reversal of 670067208 is 802760076.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24033 + ... + 43791.

It is an arithmetic number, because the mean of its divisors is an integer number (29269500).

Almost surely, 2^670067208 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 670067208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (936624000).

670067208 is an abundant number, since it is smaller than the sum of its proper divisors (1203180792).

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

670067208 is a wasteful number, since it uses less digits than its factorization.

670067208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19931 (or 19921 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 670067208 is about 25885.6564143156. The cubic root of 670067208 is about 875.0632696563.

The spelling of 670067208 in words is "six hundred seventy million, sixty-seven thousand, two hundred eight".