671170647 has 16 divisors (see below), whose sum is σ = 1023264000. Its totient is φ = 383328192.

The previous prime is 671170637. The next prime is 671170657. The reversal of 671170647 is 746071176.

It is an interprime number because it is at equal distance from previous prime (671170637) and next prime (671170657).

It is not a de Polignac number, because 671170647 - 2¹¹ = 671168599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671170637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39979 + ... + 54227.

It is an arithmetic number, because the mean of its divisors is an integer number (63954000).

Almost surely, 2^671170647 is an apocalyptic number.

671170647 is a deficient number, since it is larger than the sum of its proper divisors (352093353).

671170647 is a wasteful number, since it uses less digits than its factorization.

671170647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16502.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 671170647 is about 25906.9613617653. The cubic root of 671170647 is about 875.5433455784.

The spelling of 671170647 in words is "six hundred seventy-one million, one hundred seventy thousand, six hundred forty-seven".