671678241 has 8 divisors (see below), whose sum is σ = 964461120. Its totient is φ = 413340432.

The previous prime is 671678237. The next prime is 671678263. The reversal of 671678241 is 142876176.

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

It is not a de Polignac number, because 671678241 - 2² = 671678237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671678193 and 671678202.

It is not an unprimeable number, because it can be changed into a prime (671678641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8611221 + ... + 8611298.

It is an arithmetic number, because the mean of its divisors is an integer number (120557640).

Almost surely, 2^671678241 is an apocalyptic number.

It is an amenable number.

671678241 is a deficient number, since it is larger than the sum of its proper divisors (292782879).

671678241 is a wasteful number, since it uses less digits than its factorization.

671678241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17222535.

The product of its digits is 112896, while the sum is 42.

The square root of 671678241 is about 25916.7559891280. The cubic root of 671678241 is about 875.7640090626.

The spelling of 671678241 in words is "six hundred seventy-one million, six hundred seventy-eight thousand, two hundred forty-one".