65040789 has 16 divisors (see below), whose sum is σ = 94985280. Its totient is φ = 39260160.

The previous prime is 65040751. The next prime is 65040799. The reversal of 65040789 is 98704056.

65040789 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 65040789 - 2¹⁷ = 64909717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65040799) 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 15 ways as a sum of consecutive naturals, for example, 4647 + ... + 12315.

It is an arithmetic number, because the mean of its divisors is an integer number (5936580).

Almost surely, 2^65040789 is an apocalyptic number.

It is an amenable number.

65040789 is a deficient number, since it is larger than the sum of its proper divisors (29944491).

65040789 is a wasteful number, since it uses less digits than its factorization.

65040789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7940.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 65040789 is about 8064.7869779679. The cubic root of 65040789 is about 402.1566615461.

The spelling of 65040789 in words is "sixty-five million, forty thousand, seven hundred eighty-nine".