765664073 has 8 divisors (see below), whose sum is σ = 777954240. Its totient is φ = 753469200.

The previous prime is 765664057. The next prime is 765664099. The reversal of 765664073 is 370466567.

765664073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 765664073 - 2⁴ = 765664057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (765664013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7538 + ... + 39851.

It is an arithmetic number, because the mean of its divisors is an integer number (97244280).

Almost surely, 2^765664073 is an apocalyptic number.

It is an amenable number.

765664073 is a deficient number, since it is larger than the sum of its proper divisors (12290167).

765664073 is a wasteful number, since it uses less digits than its factorization.

765664073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47647.

The product of its (nonzero) digits is 635040, while the sum is 44.

The square root of 765664073 is about 27670.6355727511. The cubic root of 765664073 is about 914.8419896957.

The spelling of 765664073 in words is "seven hundred sixty-five million, six hundred sixty-four thousand, seventy-three".