65028680 has 16 divisors (see below), whose sum is σ = 146314620. Its totient is φ = 26011456.

The previous prime is 65028661. The next prime is 65028709. The reversal of 65028680 is 8682056.

It can be written as a sum of positive squares in 2 ways, for example, as 52736644 + 12292036 = 7262^2 + 3506^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65028680.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812819 + ... + 812898.

Almost surely, 2^65028680 is an apocalyptic number.

It is an amenable number.

65028680 is an abundant number, since it is smaller than the sum of its proper divisors (81285940).

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

65028680 is a wasteful number, since it uses less digits than its factorization.

65028680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625728 (or 1625724 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 65028680 is about 8064.0362102362. The cubic root of 65028680 is about 402.1317027609.

The spelling of 65028680 in words is "sixty-five million, twenty-eight thousand, six hundred eighty".