671736167 has 8 divisors (see below), whose sum is σ = 679704432. Its totient is φ = 663811200.

The previous prime is 671736139. The next prime is 671736199. The reversal of 671736167 is 761637176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 671736167 - 2⁶ = 671736103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671730167) 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, 20933 + ... + 42209.

It is an arithmetic number, because the mean of its divisors is an integer number (84963054).

Almost surely, 2^671736167 is an apocalyptic number.

671736167 is a deficient number, since it is larger than the sum of its proper divisors (7968265).

671736167 is a wasteful number, since it uses less digits than its factorization.

671736167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21649.

The product of its digits is 222264, while the sum is 44.

The square root of 671736167 is about 25917.8735045914. The cubic root of 671736167 is about 875.7891838386.

The spelling of 671736167 in words is "six hundred seventy-one million, seven hundred thirty-six thousand, one hundred sixty-seven".