999079559 has 2 divisors, whose sum is σ = 999079560. Its totient is φ = 999079558.

The previous prime is 999079541. The next prime is 999079561. The reversal of 999079559 is 955970999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999079559 - 2²⁰ = 998030983 is a prime.

Together with 999079561, 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 (999079259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499539779 + 499539780.

It is an arithmetic number, because the mean of its divisors is an integer number (499539780).

Almost surely, 2^999079559 is an apocalyptic number.

999079559 is a deficient number, since it is larger than the sum of its proper divisors (1).

999079559 is an equidigital number, since it uses as much as digits as its factorization.

999079559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10333575, while the sum is 62.

The square root of 999079559 is about 31608.2198011846. The cubic root of 999079559 is about 999.6930921505.

The spelling of 999079559 in words is "nine hundred ninety-nine million, seventy-nine thousand, five hundred fifty-nine".