63385087 has 4 divisors (see below), whose sum is σ = 63657360. Its totient is φ = 63112816.

The previous prime is 63385081. The next prime is 63385103. The reversal of 63385087 is 78058336.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63385087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63385081) 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 3 ways as a sum of consecutive naturals, for example, 135787 + ... + 136252.

It is an arithmetic number, because the mean of its divisors is an integer number (15914340).

Almost surely, 2^63385087 is an apocalyptic number.

63385087 is a deficient number, since it is larger than the sum of its proper divisors (272273).

63385087 is a wasteful number, since it uses less digits than its factorization.

63385087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272272.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 63385087 is about 7961.4751773776. The cubic root of 63385087 is about 398.7148063658.

The spelling of 63385087 in words is "sixty-three million, three hundred eighty-five thousand, eighty-seven".