764338869 has 24 divisors (see below), whose sum is σ = 1294762560. Its totient is φ = 436547880.

The previous prime is 764338867. The next prime is 764338879. The reversal of 764338869 is 968833467.

764338869 is a `hidden beast` number, since 76 + 433 + 88 + 69 = 666.

It is not a de Polignac number, because 764338869 - 2¹ = 764338867 is a prime.

It is a super-2 number, since 2×764338869² = 1168427813328398322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764338867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 379074 + ... + 381084.

It is an arithmetic number, because the mean of its divisors is an integer number (53948440).

Almost surely, 2^764338869 is an apocalyptic number.

It is an amenable number.

764338869 is a deficient number, since it is larger than the sum of its proper divisors (530423691).

764338869 is an frugal number, since it uses more digits than its factorization.

764338869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038 (or 2021 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 764338869 is about 27646.6791676686. The cubic root of 764338869 is about 914.3138849986.

The spelling of 764338869 in words is "seven hundred sixty-four million, three hundred thirty-eight thousand, eight hundred sixty-nine".