7872671 has 2 divisors, whose sum is σ = 7872672. Its totient is φ = 7872670.

The previous prime is 7872661. The next prime is 7872677. The reversal of 7872671 is 1762787.

7872671 is nontrivially palindromic in base 11.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7872671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7872677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936335 + 3936336.

It is an arithmetic number, because the mean of its divisors is an integer number (3936336).

Almost surely, 2^7872671 is an apocalyptic number.

7872671 is a deficient number, since it is larger than the sum of its proper divisors (1).

7872671 is an equidigital number, since it uses as much as digits as its factorization.

7872671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32928, while the sum is 38.

The square root of 7872671 is about 2805.8280417731. The cubic root of 7872671 is about 198.9332452880.

The spelling of 7872671 in words is "seven million, eight hundred seventy-two thousand, six hundred seventy-one".