764769 has 8 divisors (see below), whose sum is σ = 1073440. Its totient is φ = 482976.

The previous prime is 764723. The next prime is 764783. The reversal of 764769 is 967467.

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

It is not a de Polignac number, because 764769 - 2¹¹ = 762721 is a prime.

It is a super-2 number, since 2×764769² = 1169743246722, which contains 22 as substring.

It is a Duffinian number.

764769 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (764719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6652 + ... + 6765.

It is an arithmetic number, because the mean of its divisors is an integer number (134180).

2⁷⁶⁴⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

764769 is a deficient number, since it is larger than the sum of its proper divisors (308671).

764769 is a wasteful number, since it uses less digits than its factorization.

764769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13439.

The product of its digits is 63504, while the sum is 39.

The square root of 764769 is about 874.5107203460. The cubic root of 764769 is about 91.4485362604.

The spelling of 764769 in words is "seven hundred sixty-four thousand, seven hundred sixty-nine".