636424339 has 2 divisors, whose sum is σ = 636424340. Its totient is φ = 636424338.

The previous prime is 636424307. The next prime is 636424351. The reversal of 636424339 is 933424636.

636424339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 636424339 - 2⁵ = 636424307 is a prime.

It is not a weakly prime, because it can be changed into another prime (636424379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318212169 + 318212170.

It is an arithmetic number, because the mean of its divisors is an integer number (318212170).

Almost surely, 2^636424339 is an apocalyptic number.

636424339 is a deficient number, since it is larger than the sum of its proper divisors (1).

636424339 is an equidigital number, since it uses as much as digits as its factorization.

636424339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 40.

The square root of 636424339 is about 25227.4520909267. The cubic root of 636424339 is about 860.1659761679.

It can be divided in two parts, 6364 and 24339, that added together give a palindrome (30703).

The spelling of 636424339 in words is "six hundred thirty-six million, four hundred twenty-four thousand, three hundred thirty-nine".