671370167 has 4 divisors (see below), whose sum is σ = 723014040. Its totient is φ = 619726296.

The previous prime is 671370113. The next prime is 671370169. The reversal of 671370167 is 761073176.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 671370167 - 2⁸ = 671369911 is a prime.

It is a super-2 number, since 2×671370167² = 901475802275215778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671370167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671370169) 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 3 ways as a sum of consecutive naturals, for example, 25821917 + ... + 25821942.

It is an arithmetic number, because the mean of its divisors is an integer number (180753510).

Almost surely, 2^671370167 is an apocalyptic number.

671370167 is a deficient number, since it is larger than the sum of its proper divisors (51643873).

671370167 is a wasteful number, since it uses less digits than its factorization.

671370167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51643872.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 671370167 is about 25910.8117780976. The cubic root of 671370167 is about 875.6300950522.

The spelling of 671370167 in words is "six hundred seventy-one million, three hundred seventy thousand, one hundred sixty-seven".