65687044 has 12 divisors (see below), whose sum is σ = 115658704. Its totient is φ = 32641704.

The previous prime is 65687033. The next prime is 65687051. The reversal of 65687044 is 44078656.

It is a junction number, because it is equal to n+sod(n) for n = 65686988 and 65687006.

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, 49722 + ... + 51025.

Almost surely, 2^65687044 is an apocalyptic number.

It is an amenable number.

65687044 is a deficient number, since it is larger than the sum of its proper divisors (49971660).

65687044 is a wasteful number, since it uses less digits than its factorization.

65687044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100914 (or 100912 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 65687044 is about 8104.7544071366. The cubic root of 65687044 is about 403.4842371079.

The spelling of 65687044 in words is "sixty-five million, six hundred eighty-seven thousand, forty-four".