671846897 has 16 divisors (see below), whose sum is σ = 716496000. Its totient is φ = 628176384.

The previous prime is 671846887. The next prime is 671846927. The reversal of 671846897 is 798648176.

It is a cyclic number.

It is not a de Polignac number, because 671846897 - 2⁸ = 671846641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671846887) 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, 730604 + ... + 731522.

It is an arithmetic number, because the mean of its divisors is an integer number (44781000).

Almost surely, 2^671846897 is an apocalyptic number.

It is an amenable number.

671846897 is a deficient number, since it is larger than the sum of its proper divisors (44649103).

671846897 is a wasteful number, since it uses less digits than its factorization.

671846897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400.

The product of its digits is 4064256, while the sum is 56.

The square root of 671846897 is about 25920.0095871896. The cubic root of 671846897 is about 875.8373033301.

The spelling of 671846897 in words is "six hundred seventy-one million, eight hundred forty-six thousand, eight hundred ninety-seven".