63393687 has 12 divisors (see below), whose sum is σ = 104650000. Its totient is φ = 36224928.

The previous prime is 63393683. The next prime is 63393703. The reversal of 63393687 is 78639336.

It is a happy number.

63393687 is a `hidden beast` number, since 633 + 9 + 3 + 6 + 8 + 7 = 666.

It is not a de Polignac number, because 63393687 - 2² = 63393683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63393683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 503062 + ... + 503187.

Almost surely, 2^63393687 is an apocalyptic number.

63393687 is a deficient number, since it is larger than the sum of its proper divisors (41256313).

63393687 is a wasteful number, since it uses less digits than its factorization.

63393687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006262 (or 1006259 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 63393687 is about 7962.0152599703. The cubic root of 63393687 is about 398.7328379062.

The spelling of 63393687 in words is "sixty-three million, three hundred ninety-three thousand, six hundred eighty-seven".