63280687 has 2 divisors, whose sum is σ = 63280688. Its totient is φ = 63280686.

The previous prime is 63280673. The next prime is 63280717. The reversal of 63280687 is 78608236.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63280687 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63280187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31640343 + 31640344.

It is an arithmetic number, because the mean of its divisors is an integer number (31640344).

Almost surely, 2^63280687 is an apocalyptic number.

63280687 is a deficient number, since it is larger than the sum of its proper divisors (1).

63280687 is an equidigital number, since it uses as much as digits as its factorization.

63280687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 63280687 is about 7954.9159015039. The cubic root of 63280687 is about 398.4957816587.

The spelling of 63280687 in words is "sixty-three million, two hundred eighty thousand, six hundred eighty-seven".