768402065 has 4 divisors (see below), whose sum is σ = 922082484. Its totient is φ = 614721648.

The previous prime is 768402031. The next prime is 768402073. The reversal of 768402065 is 560204867.

It is a happy number.

768402065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 311981569 + 456420496 = 17663^2 + 21364^2 .

It is a cyclic number.

It is not a de Polignac number, because 768402065 - 2¹⁸ = 768139921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76840202 + ... + 76840211.

It is an arithmetic number, because the mean of its divisors is an integer number (230520621).

Almost surely, 2^768402065 is an apocalyptic number.

It is an amenable number.

768402065 is a deficient number, since it is larger than the sum of its proper divisors (153680419).

768402065 is a wasteful number, since it uses less digits than its factorization.

768402065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153680418.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 768402065 is about 27720.0661074248. The cubic root of 768402065 is about 915.9311750282.

The spelling of 768402065 in words is "seven hundred sixty-eight million, four hundred two thousand, sixty-five".