2647670671 has 4 divisors (see below), whose sum is σ = 2648144200. Its totient is φ = 2647197144.

The previous prime is 2647670651. The next prime is 2647670689. The reversal of 2647670671 is 1760767462.

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 2647670671 - 2⁵ = 2647670639 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 (2647670611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228276 + ... + 239593.

It is an arithmetic number, because the mean of its divisors is an integer number (662036050).

Almost surely, 2^2647670671 is an apocalyptic number.

2647670671 is a deficient number, since it is larger than the sum of its proper divisors (473529).

2647670671 is an equidigital number, since it uses as much as digits as its factorization.

2647670671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473528.

The product of its (nonzero) digits is 592704, while the sum is 46.

The square root of 2647670671 is about 51455.5212878074. The cubic root of 2647670671 is about 1383.4219269852.

The spelling of 2647670671 in words is "two billion, six hundred forty-seven million, six hundred seventy thousand, six hundred seventy-one".