63345808 has 40 divisors (see below), whose sum is σ = 130491648. Its totient is φ = 29686272.

The previous prime is 63345797. The next prime is 63345809. The reversal of 63345808 is 80854336.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (63345809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125685 + ... + 126187.

Almost surely, 2^63345808 is an apocalyptic number.

63345808 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63345808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65245824).

63345808 is an abundant number, since it is smaller than the sum of its proper divisors (67145840).

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

63345808 is a wasteful number, since it uses less digits than its factorization.

63345808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 63345808 is about 7959.0079783852. The cubic root of 63345808 is about 398.6324297073.

The spelling of 63345808 in words is "sixty-three million, three hundred forty-five thousand, eight hundred eight".