765949860 has 144 divisors (see below), whose sum is σ = 2583060480. Its totient is φ = 182442240.

The previous prime is 765949853. The next prime is 765949861. The reversal of 765949860 is 68949567.

It is a junction number, because it is equal to n+sod(n) for n = 765949797 and 765949806.

It is not an unprimeable number, because it can be changed into a prime (765949861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67261 + ... + 77819.

It is an arithmetic number, because the mean of its divisors is an integer number (17937920).

Almost surely, 2^765949860 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 765949860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1291530240).

765949860 is an abundant number, since it is smaller than the sum of its proper divisors (1817110620).

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

765949860 is a wasteful number, since it uses less digits than its factorization.

765949860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10618 (or 10613 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 765949860 is about 27675.7991754529. The cubic root of 765949860 is about 914.9557982768.

It can be divided in two parts, 765 and 949860, that added together give a square (950625 = 975²).

The spelling of 765949860 in words is "seven hundred sixty-five million, nine hundred forty-nine thousand, eight hundred sixty".