8120671 has 4 divisors (see below), whose sum is σ = 8745352. Its totient is φ = 7495992.

The previous prime is 8120659. The next prime is 8120677. The reversal of 8120671 is 1760218.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1760218 = 2 ⋅880109.

It is a cyclic number.

It is not a de Polignac number, because 8120671 - 2¹¹ = 8118623 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8120677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312321 + ... + 312346.

It is an arithmetic number, because the mean of its divisors is an integer number (2186338).

Almost surely, 2^8120671 is an apocalyptic number.

8120671 is a deficient number, since it is larger than the sum of its proper divisors (624681).

8120671 is a wasteful number, since it uses less digits than its factorization.

8120671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624680.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 8120671 is about 2849.6791047414. The cubic root of 8120671 is about 201.0005775418. Note that the first 3 decimals are identical.

Adding to 8120671 its reverse (1760218), we get a palindrome (9880889).

The spelling of 8120671 in words is "eight million, one hundred twenty thousand, six hundred seventy-one".