671122206 has 32 divisors (see below), whose sum is σ = 1531694880. Its totient is φ = 217660608.

The previous prime is 671122201. The next prime is 671122213. The reversal of 671122206 is 602221176.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 671122206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671122201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165951 + ... + 169946.

It is an arithmetic number, because the mean of its divisors is an integer number (47865465).

Almost surely, 2^671122206 is an apocalyptic number.

671122206 is an abundant number, since it is smaller than the sum of its proper divisors (860572674).

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

671122206 is a wasteful number, since it uses less digits than its factorization.

671122206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335945 (or 335939 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 671122206 is about 25906.0264417375. The cubic root of 671122206 is about 875.5222812804.

The spelling of 671122206 in words is "six hundred seventy-one million, one hundred twenty-two thousand, two hundred six".