765212928 has 72 divisors (see below), whose sum is σ = 2102343936. Its totient is φ = 246835200.

The previous prime is 765212927. The next prime is 765212941. The reversal of 765212928 is 829212567.

It is a self number, because there is not a number n which added to its sum of digits gives 765212928.

It is not an unprimeable number, because it can be changed into a prime (765212927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7738 + ... + 39878.

Almost surely, 2^765212928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 765212928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051171968).

765212928 is an abundant number, since it is smaller than the sum of its proper divisors (1337131008).

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

765212928 is a wasteful number, since it uses less digits than its factorization.

765212928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32191 (or 32177 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 765212928 is about 27662.4823181145. The cubic root of 765212928 is about 914.6622731625.

The spelling of 765212928 in words is "seven hundred sixty-five million, two hundred twelve thousand, nine hundred twenty-eight".