671717097 has 16 divisors (see below), whose sum is σ = 1002977280. Its totient is φ = 444283056.

The previous prime is 671717069. The next prime is 671717099. The reversal of 671717097 is 790717176.

It is not a de Polignac number, because 671717097 - 2⁸ = 671716841 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 94518 + ... + 101375.

It is an arithmetic number, because the mean of its divisors is an integer number (62686080).

Almost surely, 2^671717097 is an apocalyptic number.

It is an amenable number.

671717097 is a deficient number, since it is larger than the sum of its proper divisors (331260183).

671717097 is a wasteful number, since it uses less digits than its factorization.

671717097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196029 (or 196023 counting only the distinct ones).

The product of its (nonzero) digits is 129654, while the sum is 45.

The square root of 671717097 is about 25917.5056091438. The cubic root of 671717097 is about 875.7808961315.

The spelling of 671717097 in words is "six hundred seventy-one million, seven hundred seventeen thousand, ninety-seven".