63685339 has 2 divisors, whose sum is σ = 63685340. Its totient is φ = 63685338.

The previous prime is 63685327. The next prime is 63685351. The reversal of 63685339 is 93358636.

It is a balanced prime because it is at equal distance from previous prime (63685327) and next prime (63685351).

It is a cyclic number.

It is not a de Polignac number, because 63685339 - 2⁷ = 63685211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63685295 and 63685304.

It is not a weakly prime, because it can be changed into another prime (63685639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31842669 + 31842670.

It is an arithmetic number, because the mean of its divisors is an integer number (31842670).

Almost surely, 2^63685339 is an apocalyptic number.

63685339 is a deficient number, since it is larger than the sum of its proper divisors (1).

63685339 is an equidigital number, since it uses as much as digits as its factorization.

63685339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 43.

The square root of 63685339 is about 7980.3094551527. The cubic root of 63685339 is about 399.3433789618.

The spelling of 63685339 in words is "sixty-three million, six hundred eighty-five thousand, three hundred thirty-nine".