63696366 has 12 divisors (see below), whose sum is σ = 138008832. Its totient is φ = 21232116.

The previous prime is 63696359. The next prime is 63696371. The reversal of 63696366 is 66369636.

63696366 = 3989² + 3990² + ... + 3992².

63696366 is a `hidden beast` number, since 6 + 3 + 6 + 9 + 636 + 6 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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 (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1769326 + ... + 1769361.

It is an arithmetic number, because the mean of its divisors is an integer number (11500736).

Almost surely, 2^63696366 is an apocalyptic number.

63696366 is an abundant number, since it is smaller than the sum of its proper divisors (74312466).

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

63696366 is a wasteful number, since it uses less digits than its factorization.

63696366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538695 (or 3538692 counting only the distinct ones).

The product of its digits is 629856, while the sum is 45.

The square root of 63696366 is about 7981.0003132439. Note that the first 3 decimals coincide. The cubic root of 63696366 is about 399.3664261570.

The spelling of 63696366 in words is "sixty-three million, six hundred ninety-six thousand, three hundred sixty-six".