998064479 has 2 divisors, whose sum is σ = 998064480. Its totient is φ = 998064478.

The previous prime is 998064451. The next prime is 998064481. The reversal of 998064479 is 974460899.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998064479 is a prime.

It is a super-2 number, since 2×998064479² = 1992265408483082882, which contains 22 as substring.

Together with 998064481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998064079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499032239 + 499032240.

It is an arithmetic number, because the mean of its divisors is an integer number (499032240).

Almost surely, 2^998064479 is an apocalyptic number.

998064479 is a deficient number, since it is larger than the sum of its proper divisors (1).

998064479 is an equidigital number, since it uses as much as digits as its factorization.

998064479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 998064479 is about 31592.1585049202. The cubic root of 998064479 is about 999.3544096361.

The spelling of 998064479 in words is "nine hundred ninety-eight million, sixty-four thousand, four hundred seventy-nine".