63987303 has 8 divisors (see below), whose sum is σ = 90335088. Its totient is φ = 40148864.

The previous prime is 63987289. The next prime is 63987349. The reversal of 63987303 is 30378936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63987303 - 2⁶ = 63987239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63987103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627276 + ... + 627377.

It is an arithmetic number, because the mean of its divisors is an integer number (11291886).

Almost surely, 2^63987303 is an apocalyptic number.

63987303 is a deficient number, since it is larger than the sum of its proper divisors (26347785).

63987303 is a wasteful number, since it uses less digits than its factorization.

63987303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254673.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 63987303 is about 7999.2063981373. The cubic root of 63987303 is about 399.9735461672.

The spelling of 63987303 in words is "sixty-three million, nine hundred eighty-seven thousand, three hundred three".