63945459 has 6 divisors (see below), whose sum is σ = 92365676. Its totient is φ = 42630300.

The previous prime is 63945443. The next prime is 63945487. The reversal of 63945459 is 95454936.

63945459 is a `hidden beast` number, since 639 + 4 + 5 + 4 + 5 + 9 = 666.

It is not a de Polignac number, because 63945459 - 2⁴ = 63945443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63945059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3552517 + ... + 3552534.

Almost surely, 2^63945459 is an apocalyptic number.

63945459 is a deficient number, since it is larger than the sum of its proper divisors (28420217).

63945459 is a wasteful number, since it uses less digits than its factorization.

63945459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7105057 (or 7105054 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 63945459 is about 7996.5904609402. The cubic root of 63945459 is about 399.8863406236.

The spelling of 63945459 in words is "sixty-three million, nine hundred forty-five thousand, four hundred fifty-nine".