670670071 has 4 divisors (see below), whose sum is σ = 670722552. Its totient is φ = 670617592.

The previous prime is 670670069. The next prime is 670670081. The reversal of 670670071 is 170076076.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 670670071 - 2¹ = 670670069 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 (670670081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6780 + ... + 37246.

It is an arithmetic number, because the mean of its divisors is an integer number (167680638).

Almost surely, 2^670670071 is an apocalyptic number.

670670071 is a deficient number, since it is larger than the sum of its proper divisors (52481).

670670071 is a wasteful number, since it uses less digits than its factorization.

670670071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52480.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 670670071 is about 25897.2985270665. The cubic root of 670670071 is about 875.3256240040.

The spelling of 670670071 in words is "six hundred seventy million, six hundred seventy thousand, seventy-one".