63679339 has 2 divisors, whose sum is σ = 63679340. Its totient is φ = 63679338.

The previous prime is 63679337. The next prime is 63679351. The reversal of 63679339 is 93397636.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63679339 - 2¹ = 63679337 is a prime.

Together with 63679337, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63679337) 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, 31839669 + 31839670.

It is an arithmetic number, because the mean of its divisors is an integer number (31839670).

Almost surely, 2^63679339 is an apocalyptic number.

63679339 is a deficient number, since it is larger than the sum of its proper divisors (1).

63679339 is an equidigital number, since it uses as much as digits as its factorization.

63679339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 551124, while the sum is 46.

The square root of 63679339 is about 7979.9335210264. The cubic root of 63679339 is about 399.3308374279.

The spelling of 63679339 in words is "sixty-three million, six hundred seventy-nine thousand, three hundred thirty-nine".