65808336 has 80 divisors (see below), whose sum is σ = 193559040. Its totient is φ = 19071360.

The previous prime is 65808329. The next prime is 65808371. The reversal of 65808336 is 63380856.

It is a junction number, because it is equal to n+sod(n) for n = 65808294 and 65808303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9435 + ... + 14853.

It is an arithmetic number, because the mean of its divisors is an integer number (2419488).

Almost surely, 2^65808336 is an apocalyptic number.

65808336 is a gapful number since it is divisible by the number (66) 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 65808336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96779520).

65808336 is an abundant number, since it is smaller than the sum of its proper divisors (127750704).

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

65808336 is a wasteful number, since it uses less digits than its factorization.

65808336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464 (or 5458 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 65808336 is about 8112.2337244436. The cubic root of 65808336 is about 403.7324307422.

The spelling of 65808336 in words is "sixty-five million, eight hundred eight thousand, three hundred thirty-six".