769385 has 4 divisors (see below), whose sum is σ = 923268. Its totient is φ = 615504.

The previous prime is 769357. The next prime is 769387. The reversal of 769385 is 583967.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583967 = 17 ⋅34351.

It can be written as a sum of positive squares in 2 ways, for example, as 290521 + 478864 = 539^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 769385 - 2¹⁴ = 753001 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 769385.

It is not an unprimeable number, because it can be changed into a prime (769387) 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 3 ways as a sum of consecutive naturals, for example, 76934 + ... + 76943.

It is an arithmetic number, because the mean of its divisors is an integer number (230817).

2⁷⁶⁹³⁸⁵ is an apocalyptic number.

It is an amenable number.

769385 is a deficient number, since it is larger than the sum of its proper divisors (153883).

769385 is a wasteful number, since it uses less digits than its factorization.

769385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153882.

The product of its digits is 45360, while the sum is 38.

The square root of 769385 is about 877.1459399667. The cubic root of 769385 is about 91.6321559714.

It can be divided in two parts, 769 and 385, that multiplied together give a triangular number (296065 = T₇₆₉).

The spelling of 769385 in words is "seven hundred sixty-nine thousand, three hundred eighty-five".