63699696 has 100 divisors (see below), whose sum is σ = 192471312. Its totient is φ = 20300544.

The previous prime is 63699683. The next prime is 63699707. The reversal of 63699696 is 69699636.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 28740 + ... + 30876.

Almost surely, 2^63699696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63699696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96235656).

63699696 is an abundant number, since it is smaller than the sum of its proper divisors (128771616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63699696 is a wasteful number, since it uses less digits than its factorization.

63699696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180 (or 2165 counting only the distinct ones).

The product of its digits is 2834352, while the sum is 54.

The square root of 63699696 is about 7981.2089309828. The cubic root of 63699696 is about 399.3733855651.

The spelling of 63699696 in words is "sixty-three million, six hundred ninety-nine thousand, six hundred ninety-six".