671208897 has 16 divisors (see below), whose sum is σ = 929473920. Its totient is φ = 430480512.

The previous prime is 671208893. The next prime is 671208911. The reversal of 671208897 is 798802176.

It is not a de Polignac number, because 671208897 - 2² = 671208893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671208893) 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 15 ways as a sum of consecutive naturals, for example, 24093 + ... + 43850.

It is an arithmetic number, because the mean of its divisors is an integer number (58092120).

Almost surely, 2^671208897 is an apocalyptic number.

It is an amenable number.

671208897 is a deficient number, since it is larger than the sum of its proper divisors (258265023).

671208897 is a wasteful number, since it uses less digits than its factorization.

671208897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68072.

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 671208897 is about 25907.6995698190. The cubic root of 671208897 is about 875.5599776610.

The spelling of 671208897 in words is "six hundred seventy-one million, two hundred eight thousand, eight hundred ninety-seven".