65386828 has 72 divisors (see below), whose sum is σ = 138395600. Its totient is φ = 26790912.

The previous prime is 65386813. The next prime is 65386829. The reversal of 65386828 is 82868356.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (65386829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285418 + ... + 285646.

Almost surely, 2^65386828 is an apocalyptic number.

65386828 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

65386828 is an abundant number, since it is smaller than the sum of its proper divisors (73008772).

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

65386828 is a wasteful number, since it uses less digits than its factorization.

65386828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 280 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 65386828 is about 8086.2122158647. The cubic root of 65386828 is about 402.8686036054.

It can be divided in two parts, 6538 and 6828, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 65386828 in words is "sixty-five million, three hundred eighty-six thousand, eight hundred twenty-eight".