670446163 has 4 divisors (see below), whose sum is σ = 670782888. Its totient is φ = 670109440.

The previous prime is 670446149. The next prime is 670446169. The reversal of 670446163 is 361644076.

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 670446163 - 2²⁹ = 133575251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670446169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165358 + ... + 169363.

It is an arithmetic number, because the mean of its divisors is an integer number (167695722).

Almost surely, 2^670446163 is an apocalyptic number.

670446163 is a deficient number, since it is larger than the sum of its proper divisors (336725).

670446163 is a wasteful number, since it uses less digits than its factorization.

670446163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336724.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 670446163 is about 25892.9751670217. The cubic root of 670446163 is about 875.2282019214.

The spelling of 670446163 in words is "six hundred seventy million, four hundred forty-six thousand, one hundred sixty-three".