8456879 has 2 divisors, whose sum is σ = 8456880. Its totient is φ = 8456878.

The previous prime is 8456867. The next prime is 8456887. The reversal of 8456879 is 9786548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8456879 - 2¹² = 8452783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8456809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4228439 + 4228440.

It is an arithmetic number, because the mean of its divisors is an integer number (4228440).

Almost surely, 2^8456879 is an apocalyptic number.

8456879 is a deficient number, since it is larger than the sum of its proper divisors (1).

8456879 is an equidigital number, since it uses as much as digits as its factorization.

8456879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 47.

The square root of 8456879 is about 2908.0713540077. The cubic root of 8456879 is about 203.7370619207.

The spelling of 8456879 in words is "eight million, four hundred fifty-six thousand, eight hundred seventy-nine".