8446979 has 2 divisors, whose sum is σ = 8446980. Its totient is φ = 8446978.

The previous prime is 8446967. The next prime is 8447029. The reversal of 8446979 is 9796448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8446979 - 2¹² = 8442883 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (8446939) 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, 4223489 + 4223490.

It is an arithmetic number, because the mean of its divisors is an integer number (4223490).

Almost surely, 2^8446979 is an apocalyptic number.

8446979 is a deficient number, since it is larger than the sum of its proper divisors (1).

8446979 is an equidigital number, since it uses as much as digits as its factorization.

8446979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 8446979 is about 2906.3686965008. The cubic root of 8446979 is about 203.6575296454.

It can be divided in two parts, 84469 and 79, that added together give a palindrome (84548).

The spelling of 8446979 in words is "eight million, four hundred forty-six thousand, nine hundred seventy-nine".