99782239 has 2 divisors, whose sum is σ = 99782240. Its totient is φ = 99782238.

The previous prime is 99782237. The next prime is 99782311. The reversal of 99782239 is 93228799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99782239 - 2¹ = 99782237 is a prime.

Together with 99782237, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 99782192 and 99782201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99782237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49891119 + 49891120.

It is an arithmetic number, because the mean of its divisors is an integer number (49891120).

Almost surely, 2^99782239 is an apocalyptic number.

99782239 is a deficient number, since it is larger than the sum of its proper divisors (1).

99782239 is an equidigital number, since it uses as much as digits as its factorization.

99782239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 99782239 is about 9989.1060160557. The cubic root of 99782239 is about 463.8217194969.

The spelling of 99782239 in words is "ninety-nine million, seven hundred eighty-two thousand, two hundred thirty-nine".