765669 has 8 divisors (see below), whose sum is σ = 1053952. Its totient is φ = 493920.

The previous prime is 765659. The next prime is 765673. The reversal of 765669 is 966567.

It is a happy number.

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

It is not a de Polignac number, because 765669 - 2¹¹ = 763621 is a prime.

It is a super-2 number, since 2×765669² = 1172498035122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765619) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4024 + ... + 4209.

It is an arithmetic number, because the mean of its divisors is an integer number (131744).

2⁷⁶⁵⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

765669 is a deficient number, since it is larger than the sum of its proper divisors (288283).

765669 is a wasteful number, since it uses less digits than its factorization.

765669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8267.

The product of its digits is 68040, while the sum is 39.

The square root of 765669 is about 875.0251424959. The cubic root of 765669 is about 91.4843952008.

The spelling of 765669 in words is "seven hundred sixty-five thousand, six hundred sixty-nine".