671274011 has 4 divisors (see below), whose sum is σ = 672127752. Its totient is φ = 670420272.

The previous prime is 671273987. The next prime is 671274013. The reversal of 671274011 is 110472176.

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 671274011 - 2²⁶ = 604165147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671274013) 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, 425690 + ... + 427263.

It is an arithmetic number, because the mean of its divisors is an integer number (168031938).

Almost surely, 2^671274011 is an apocalyptic number.

671274011 is a deficient number, since it is larger than the sum of its proper divisors (853741).

671274011 is an equidigital number, since it uses as much as digits as its factorization.

671274011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853740.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 671274011 is about 25908.9561927917. The cubic root of 671274011 is about 875.5882894475.

The spelling of 671274011 in words is "six hundred seventy-one million, two hundred seventy-four thousand, eleven".