65734785 has 12 divisors (see below), whose sum is σ = 113940372. Its totient is φ = 35058528.

The previous prime is 65734783. The next prime is 65734807. The reversal of 65734785 is 58743756.

65734785 is a `hidden beast` number, since 6 + 573 + 4 + 78 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21538881 + 44195904 = 4641^2 + 6648^2 .

It is not a de Polignac number, because 65734785 - 2¹ = 65734783 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1460773 = 65734785 / (6 + 5 + 7 + 3 + 4 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 65734785.

It is not an unprimeable number, because it can be changed into a prime (65734783) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 730342 + ... + 730431.

It is an arithmetic number, because the mean of its divisors is an integer number (9495031).

Almost surely, 2^65734785 is an apocalyptic number.

It is an amenable number.

65734785 is a deficient number, since it is larger than the sum of its proper divisors (48205587).

65734785 is a wasteful number, since it uses less digits than its factorization.

65734785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460784 (or 1460781 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 65734785 is about 8107.6991187389. The cubic root of 65734785 is about 403.5819635138.

The spelling of 65734785 in words is "sixty-five million, seven hundred thirty-four thousand, seven hundred eighty-five".