671717098 has 16 divisors (see below), whose sum is σ = 1089748296. Its totient is φ = 308689920.

The previous prime is 671717069. The next prime is 671717099. The reversal of 671717098 is 890717176.

It can be written as a sum of positive squares in 4 ways, for example, as 409374289 + 262342809 = 20233^2 + 16197^2 .

It is not an unprimeable number, because it can be changed into a prime (671717099) 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, 49383 + ... + 61498.

Almost surely, 2^671717098 is an apocalyptic number.

671717098 is a deficient number, since it is larger than the sum of its proper divisors (418031198).

671717098 is a wasteful number, since it uses less digits than its factorization.

671717098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111129.

The product of its (nonzero) digits is 148176, while the sum is 46.

The square root of 671717098 is about 25917.5056284358. The cubic root of 671717098 is about 875.7808965661.

The spelling of 671717098 in words is "six hundred seventy-one million, seven hundred seventeen thousand, ninety-eight".