670163 has 4 divisors (see below), whose sum is σ = 721728. Its totient is φ = 618600.

The previous prime is 670147. The next prime is 670177. The reversal of 670163 is 361076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670163 - 2⁴ = 670147 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670193) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25763 + ... + 25788.

It is an arithmetic number, because the mean of its divisors is an integer number (180432).

2⁶⁷⁰¹⁶³ is an apocalyptic number.

670163 is a deficient number, since it is larger than the sum of its proper divisors (51565).

670163 is a wasteful number, since it uses less digits than its factorization.

670163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51564.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 670163 is about 818.6348392293. The cubic root of 670163 is about 87.5104966999.

The spelling of 670163 in words is "six hundred seventy thousand, one hundred sixty-three".