65087646 has 24 divisors (see below), whose sum is σ = 140961240. Its totient is φ = 20026656.

The previous prime is 65087641. The next prime is 65087669. The reversal of 65087646 is 64678056.

It is a happy number.

65087646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65087598 and 65087607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65087641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31081 + ... + 33108.

It is an arithmetic number, because the mean of its divisors is an integer number (5873385).

Almost surely, 2^65087646 is an apocalyptic number.

65087646 is an abundant number, since it is smaller than the sum of its proper divisors (75873594).

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

65087646 is a wasteful number, since it uses less digits than its factorization.

65087646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64220 (or 64207 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 65087646 is about 8067.6914913747. The cubic root of 65087646 is about 402.2532129133.

The spelling of 65087646 in words is "sixty-five million, eighty-seven thousand, six hundred forty-six".