7928671 has 2 divisors, whose sum is σ = 7928672. Its totient is φ = 7928670.

The previous prime is 7928651. The next prime is 7928689. The reversal of 7928671 is 1768297.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7928671 - 2¹⁷ = 7797599 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7928651) 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 as a sum of consecutive naturals, namely, 3964335 + 3964336.

It is an arithmetic number, because the mean of its divisors is an integer number (3964336).

Almost surely, 2^7928671 is an apocalyptic number.

7928671 is a deficient number, since it is larger than the sum of its proper divisors (1).

7928671 is an equidigital number, since it uses as much as digits as its factorization.

7928671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The square root of 7928671 is about 2815.7895873094. The cubic root of 7928671 is about 199.4038162573.

The spelling of 7928671 in words is "seven million, nine hundred twenty-eight thousand, six hundred seventy-one".