65634008 has 64 divisors (see below), whose sum is σ = 144335520. Its totient is φ = 27648000.

The previous prime is 65634001. The next prime is 65634011. The reversal of 65634008 is 80043656.

It is a super-2 number, since 2×65634008² = 8615646012288128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65634001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 108908 + ... + 109508.

Almost surely, 2^65634008 is an apocalyptic number.

65634008 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 65634008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72167760).

65634008 is an abundant number, since it is smaller than the sum of its proper divisors (78701512).

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

65634008 is a wasteful number, since it uses less digits than its factorization.

65634008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 65634008 is about 8101.4818397624. The cubic root of 65634008 is about 403.3756162367.

The spelling of 65634008 in words is "sixty-five million, six hundred thirty-four thousand, eight".