63678693 has 48 divisors (see below), whose sum is σ = 98029440. Its totient is φ = 36691200.

The previous prime is 63678691. The next prime is 63678701. The reversal of 63678693 is 39687636.

It is a happy number.

It is not a de Polignac number, because 63678693 - 2¹ = 63678691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63678691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 896848 + ... + 896918.

It is an arithmetic number, because the mean of its divisors is an integer number (2042280).

Almost surely, 2^63678693 is an apocalyptic number.

It is an amenable number.

63678693 is a deficient number, since it is larger than the sum of its proper divisors (34350747).

63678693 is a wasteful number, since it uses less digits than its factorization.

63678693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 177 counting only the distinct ones).

The product of its digits is 979776, while the sum is 48.

The square root of 63678693 is about 7979.8930443960. The cubic root of 63678693 is about 399.3294870757.

The spelling of 63678693 in words is "sixty-three million, six hundred seventy-eight thousand, six hundred ninety-three".