63969683 has 2 divisors, whose sum is σ = 63969684. Its totient is φ = 63969682.

The previous prime is 63969673. The next prime is 63969727. The reversal of 63969683 is 38696936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63969683 - 2⁴ = 63969667 is a prime.

It is not a weakly prime, because it can be changed into another prime (63969673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31984841 + 31984842.

It is an arithmetic number, because the mean of its divisors is an integer number (31984842).

Almost surely, 2^63969683 is an apocalyptic number.

63969683 is a deficient number, since it is larger than the sum of its proper divisors (1).

63969683 is an equidigital number, since it uses as much as digits as its factorization.

63969683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 50.

The square root of 63969683 is about 7998.1049630522. The cubic root of 63969683 is about 399.9368296076.

The spelling of 63969683 in words is "sixty-three million, nine hundred sixty-nine thousand, six hundred eighty-three".