65047765 has 16 divisors (see below), whose sum is σ = 82298880. Its totient is φ = 49282560.

The previous prime is 65047747. The next prime is 65047799. The reversal of 65047765 is 56774056.

It is a happy number.

65047765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65047765 - 2⁵ = 65047733 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2821 + ... + 11749.

It is an arithmetic number, because the mean of its divisors is an integer number (5143680).

Almost surely, 2^65047765 is an apocalyptic number.

It is an amenable number.

65047765 is a deficient number, since it is larger than the sum of its proper divisors (17251115).

65047765 is a wasteful number, since it uses less digits than its factorization.

65047765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9012.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 65047765 is about 8065.2194638460. The cubic root of 65047765 is about 402.1710389064.

The spelling of 65047765 in words is "sixty-five million, forty-seven thousand, seven hundred sixty-five".