765361 has 4 divisors (see below), whose sum is σ = 770112. Its totient is φ = 760612.

The previous prime is 765353. The next prime is 765379. The reversal of 765361 is 163567.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 765361 - 2³ = 765353 is a prime.

It is a Duffinian number.

765361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (765461) 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, 2125 + ... + 2458.

It is an arithmetic number, because the mean of its divisors is an integer number (192528).

2⁷⁶⁵³⁶¹ is an apocalyptic number.

It is an amenable number.

765361 is a deficient number, since it is larger than the sum of its proper divisors (4751).

765361 is a wasteful number, since it uses less digits than its factorization.

765361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4750.

The product of its digits is 3780, while the sum is 28.

The square root of 765361 is about 874.8491298504. The cubic root of 765361 is about 91.4721266388.

The spelling of 765361 in words is "seven hundred sixty-five thousand, three hundred sixty-one".