769582820 has 12 divisors (see below), whose sum is σ = 1616123964. Its totient is φ = 307833120.

The previous prime is 769582811. The next prime is 769582823. The reversal of 769582820 is 28285967.

It can be written as a sum of positive squares in 2 ways, for example, as 497200804 + 272382016 = 22298^2 + 16504^2 .

It is not an unprimeable number, because it can be changed into a prime (769582823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19239551 + ... + 19239590.

It is an arithmetic number, because the mean of its divisors is an integer number (134676997).

Almost surely, 2^769582820 is an apocalyptic number.

It is an amenable number.

769582820 is an abundant number, since it is smaller than the sum of its proper divisors (846541144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

769582820 is a wasteful number, since it uses less digits than its factorization.

769582820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38479150 (or 38479148 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 769582820 is about 27741.3557707622. The cubic root of 769582820 is about 916.4000861550.

The spelling of 769582820 in words is "seven hundred sixty-nine million, five hundred eighty-two thousand, eight hundred twenty".