8478851 has 2 divisors, whose sum is σ = 8478852. Its totient is φ = 8478850.

The previous prime is 8478829. The next prime is 8478853. The reversal of 8478851 is 1588748.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8478851 is a prime.

Together with 8478853, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 8478799 and 8478808.

It is not a weakly prime, because it can be changed into another prime (8478853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239425 + 4239426.

It is an arithmetic number, because the mean of its divisors is an integer number (4239426).

Almost surely, 2^8478851 is an apocalyptic number.

8478851 is a deficient number, since it is larger than the sum of its proper divisors (1).

8478851 is an equidigital number, since it uses as much as digits as its factorization.

8478851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71680, while the sum is 41.

The square root of 8478851 is about 2911.8466649190. The cubic root of 8478851 is about 203.9133538866.

The spelling of 8478851 in words is "eight million, four hundred seventy-eight thousand, eight hundred fifty-one".