670563 has 6 divisors (see below), whose sum is σ = 968604. Its totient is φ = 447036.

The previous prime is 670559. The next prime is 670577. The reversal of 670563 is 365076.

It is not a de Polignac number, because 670563 - 2² = 670559 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (670543) 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 5 ways as a sum of consecutive naturals, for example, 37245 + ... + 37262.

It is an arithmetic number, because the mean of its divisors is an integer number (161434).

2⁶⁷⁰⁵⁶³ is an apocalyptic number.

670563 is a deficient number, since it is larger than the sum of its proper divisors (298041).

670563 is a wasteful number, since it uses less digits than its factorization.

670563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74513 (or 74510 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 670563 is about 818.8791119573. The cubic root of 670563 is about 87.5279040255.

The spelling of 670563 in words is "six hundred seventy thousand, five hundred sixty-three".