765504534 has 16 divisors (see below), whose sum is σ = 1552573440. Its totient is φ = 251574120.

The previous prime is 765504479. The next prime is 765504539. The reversal of 765504534 is 435405567.

It is a junction number, because it is equal to n+sod(n) for n = 765504492 and 765504501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765504539) 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 7 ways as a sum of consecutive naturals, for example, 898054 + ... + 898905.

It is an arithmetic number, because the mean of its divisors is an integer number (97035840).

Almost surely, 2^765504534 is an apocalyptic number.

765504534 is an abundant number, since it is smaller than the sum of its proper divisors (787068906).

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

765504534 is a wasteful number, since it uses less digits than its factorization.

765504534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797035.

The product of its (nonzero) digits is 252000, while the sum is 39.

The square root of 765504534 is about 27667.7526011781. The cubic root of 765504534 is about 914.7784443717.

The spelling of 765504534 in words is "seven hundred sixty-five million, five hundred four thousand, five hundred thirty-four".