670386 has 8 divisors (see below), whose sum is σ = 1340784. Its totient is φ = 223460.

The previous prime is 670379. The next prime is 670399. The reversal of 670386 is 683076.

670386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

670386 is an admirable number.

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, 55860 + ... + 55871.

It is an arithmetic number, because the mean of its divisors is an integer number (167598).

2⁶⁷⁰³⁸⁶ is an apocalyptic number.

670386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

670386 is a wasteful number, since it uses less digits than its factorization.

670386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111736.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 670386 is about 818.7710302643. The cubic root of 670386 is about 87.5202021381.

The spelling of 670386 in words is "six hundred seventy thousand, three hundred eighty-six".