671176049 has 4 divisors (see below), whose sum is σ = 671266020. Its totient is φ = 671086080.

The previous prime is 671176039. The next prime is 671176057. The reversal of 671176049 is 940671176.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148230625 + 522945424 = 12175^2 + 22868^2 .

It is a cyclic number.

It is not a de Polignac number, because 671176049 - 2¹² = 671171953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671175997 and 671176015.

It is not an unprimeable number, because it can be changed into a prime (671176039) 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, 32672 + ... + 49089.

It is an arithmetic number, because the mean of its divisors is an integer number (167816505).

Almost surely, 2^671176049 is an apocalyptic number.

It is an amenable number.

671176049 is a deficient number, since it is larger than the sum of its proper divisors (89971).

671176049 is an equidigital number, since it uses as much as digits as its factorization.

671176049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89970.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 671176049 is about 25907.0656192476. The cubic root of 671176049 is about 875.5456945451.

The spelling of 671176049 in words is "six hundred seventy-one million, one hundred seventy-six thousand, forty-nine".