999872059 has 2 divisors, whose sum is σ = 999872060. Its totient is φ = 999872058.

The previous prime is 999872057. The next prime is 999872129. The reversal of 999872059 is 950278999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999872059 - 2¹ = 999872057 is a prime.

Together with 999872057, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 999871994 and 999872012.

It is not a weakly prime, because it can be changed into another prime (999872057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499936029 + 499936030.

It is an arithmetic number, because the mean of its divisors is an integer number (499936030).

Almost surely, 2^999872059 is an apocalyptic number.

999872059 is a deficient number, since it is larger than the sum of its proper divisors (1).

999872059 is an equidigital number, since it uses as much as digits as its factorization.

999872059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 58.

The square root of 999872059 is about 31620.7536121453. The cubic root of 999872059 is about 999.9573511811.

The spelling of 999872059 in words is "nine hundred ninety-nine million, eight hundred seventy-two thousand, fifty-nine".