65087628 has 24 divisors (see below), whose sum is σ = 160805232. Its totient is φ = 20419584.

The previous prime is 65087599. The next prime is 65087639. The reversal of 65087628 is 82678056.

It is a self number, because there is not a number n which added to its sum of digits gives 65087628.

It is an unprimeable number.

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, 159325 + ... + 159732.

It is an arithmetic number, because the mean of its divisors is an integer number (6700218).

Almost surely, 2^65087628 is an apocalyptic number.

65087628 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

65087628 is an abundant number, since it is smaller than the sum of its proper divisors (95717604).

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

65087628 is a wasteful number, since it uses less digits than its factorization.

65087628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319081 (or 319079 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 65087628 is about 8067.6903758139. The cubic root of 65087628 is about 402.2531758322.

The spelling of 65087628 in words is "sixty-five million, eighty-seven thousand, six hundred twenty-eight".