671248017 has 72 divisors (see below), whose sum is σ = 1145795040. Its totient is φ = 374492160.

The previous prime is 671248003. The next prime is 671248091. The reversal of 671248017 is 710842176.

It is not a de Polignac number, because 671248017 - 2⁶ = 671247953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671248217) 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 71 ways as a sum of consecutive naturals, for example, 3477873 + ... + 3478065.

It is an arithmetic number, because the mean of its divisors is an integer number (15913820).

Almost surely, 2^671248017 is an apocalyptic number.

It is an amenable number.

671248017 is a deficient number, since it is larger than the sum of its proper divisors (474547023).

671248017 is a wasteful number, since it uses less digits than its factorization.

671248017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 671248017 is about 25908.4545467305. The cubic root of 671248017 is about 875.5769873883.

The spelling of 671248017 in words is "six hundred seventy-one million, two hundred forty-eight thousand, seventeen".