9964879 has 2 divisors, whose sum is σ = 9964880. Its totient is φ = 9964878.

The previous prime is 9964859. The next prime is 9964883. The reversal of 9964879 is 9784699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9964879 - 2⁵ = 9964847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9964859) 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, 4982439 + 4982440.

It is an arithmetic number, because the mean of its divisors is an integer number (4982440).

Almost surely, 2^9964879 is an apocalyptic number.

9964879 is a deficient number, since it is larger than the sum of its proper divisors (1).

9964879 is an equidigital number, since it uses as much as digits as its factorization.

9964879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 52.

The square root of 9964879 is about 3156.7196581261. The cubic root of 9964879 is about 215.1909534830.

The spelling of 9964879 in words is "nine million, nine hundred sixty-four thousand, eight hundred seventy-nine".