65147764 has 12 divisors (see below), whose sum is σ = 124373088. Its totient is φ = 29612600.

The previous prime is 65147737. The next prime is 65147773. The reversal of 65147764 is 46774156.

65147764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 740272 + ... + 740359.

It is an arithmetic number, because the mean of its divisors is an integer number (10364424).

Almost surely, 2^65147764 is an apocalyptic number.

It is an amenable number.

65147764 is a deficient number, since it is larger than the sum of its proper divisors (59225324).

65147764 is a wasteful number, since it uses less digits than its factorization.

65147764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480646 (or 1480644 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 65147764 is about 8071.4164803955. The cubic root of 65147764 is about 402.3770214420.

The spelling of 65147764 in words is "sixty-five million, one hundred forty-seven thousand, seven hundred sixty-four".