671045266 has 8 divisors (see below), whose sum is σ = 1011838464. Its totient is φ = 333765780.

The previous prime is 671045261. The next prime is 671045269. The reversal of 671045266 is 662540176.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (671045261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877950 + ... + 878713.

It is an arithmetic number, because the mean of its divisors is an integer number (126479808).

Almost surely, 2^671045266 is an apocalyptic number.

671045266 is a deficient number, since it is larger than the sum of its proper divisors (340793198).

671045266 is a wasteful number, since it uses less digits than its factorization.

671045266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756856.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 671045266 is about 25904.5414165161. The cubic root of 671045266 is about 875.4888222680.

The spelling of 671045266 in words is "six hundred seventy-one million, forty-five thousand, two hundred sixty-six".