755765 has 4 divisors (see below), whose sum is σ = 906924. Its totient is φ = 604608.

The previous prime is 755759. The next prime is 755767. The reversal of 755765 is 567557.

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 398161 + 357604 = 631^2 + 598^2 .

It is a cyclic number.

It is not a de Polignac number, because 755765 - 2⁸ = 755509 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 (755767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75572 + ... + 75581.

It is an arithmetic number, because the mean of its divisors is an integer number (226731).

2⁷⁵⁵⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

755765 is a deficient number, since it is larger than the sum of its proper divisors (151159).

755765 is a wasteful number, since it uses less digits than its factorization.

755765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151158.

The product of its digits is 36750, while the sum is 35.

The square root of 755765 is about 869.3474564292. The cubic root of 755765 is about 91.0882290457.

The spelling of 755765 in words is "seven hundred fifty-five thousand, seven hundred sixty-five".