63693387 has 12 divisors (see below), whose sum is σ = 92847040. Its totient is φ = 42072048.

The previous prime is 63693359. The next prime is 63693403. The reversal of 63693387 is 78339636.

It is a happy number.

63693387 is a `hidden beast` number, since 636 + 9 + 3 + 3 + 8 + 7 = 666.

It is not a de Polignac number, because 63693387 - 2⁶ = 63693323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63693307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31483 + ... + 33444.

Almost surely, 2^63693387 is an apocalyptic number.

63693387 is a deficient number, since it is larger than the sum of its proper divisors (29153653).

63693387 is a wasteful number, since it uses less digits than its factorization.

63693387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65042 (or 65039 counting only the distinct ones).

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

The square root of 63693387 is about 7980.8136803211. The cubic root of 63693387 is about 399.3602001025.

The spelling of 63693387 in words is "sixty-three million, six hundred ninety-three thousand, three hundred eighty-seven".