765513047 has 12 divisors (see below), whose sum is σ = 848213784. Its totient is φ = 690187680.

The previous prime is 765513031. The next prime is 765513053. The reversal of 765513047 is 740315567.

It is not a de Polignac number, because 765513047 - 2⁴ = 765513031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 765513047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765513647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45404 + ... + 59937.

It is an arithmetic number, because the mean of its divisors is an integer number (70684482).

Almost surely, 2^765513047 is an apocalyptic number.

765513047 is a deficient number, since it is larger than the sum of its proper divisors (82700737).

765513047 is a wasteful number, since it uses less digits than its factorization.

765513047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105410 (or 105397 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 765513047 is about 27667.9064441096. The cubic root of 765513047 is about 914.7818353728.

It can be divided in two parts, 7655 and 13047, that added together give a palindrome (20702).

The spelling of 765513047 in words is "seven hundred sixty-five million, five hundred thirteen thousand, forty-seven".