765668485 has 8 divisors (see below), whose sum is σ = 919084536. Its totient is φ = 612346560.

The previous prime is 765668471. The next prime is 765668489. The reversal of 765668485 is 584866567.

It can be written as a sum of positive squares in 4 ways, for example, as 109181601 + 656486884 = 10449^2 + 25622^2 .

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

It is not a de Polignac number, because 765668485 - 2⁷ = 765668357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765668489) 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, 4186 + ... + 39355.

It is an arithmetic number, because the mean of its divisors is an integer number (114885567).

Almost surely, 2^765668485 is an apocalyptic number.

It is an amenable number.

765668485 is a deficient number, since it is larger than the sum of its proper divisors (153416051).

765668485 is a wasteful number, since it uses less digits than its factorization.

765668485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47063.

The product of its digits is 9676800, while the sum is 55.

The square root of 765668485 is about 27670.7152961393. The cubic root of 765668485 is about 914.8437468958.

The spelling of 765668485 in words is "seven hundred sixty-five million, six hundred sixty-eight thousand, four hundred eighty-five".