768827765 has 16 divisors (see below), whose sum is σ = 932480640. Its totient is φ = 608502720.

The previous prime is 768827711. The next prime is 768827767. The reversal of 768827765 is 567728867.

It is a happy number.

It is not a de Polignac number, because 768827765 - 2⁶ = 768827701 is a prime.

It is a super-2 number, since 2×768827765² = 1182192264469790450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 768827765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768827767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214367 + ... + 217923.

It is an arithmetic number, because the mean of its divisors is an integer number (58280040).

Almost surely, 2^768827765 is an apocalyptic number.

It is an amenable number.

768827765 is a deficient number, since it is larger than the sum of its proper divisors (163652875).

768827765 is a wasteful number, since it uses less digits than its factorization.

768827765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012.

The product of its digits is 7902720, while the sum is 56.

The square root of 768827765 is about 27727.7435973431. The cubic root of 768827765 is about 916.1002878475.

It can be divided in two parts, 7688 and 27765, that added together give a palindrome (35453).

The spelling of 768827765 in words is "seven hundred sixty-eight million, eight hundred twenty-seven thousand, seven hundred sixty-five".