768036757 has 4 divisors (see below), whose sum is σ = 772280236. Its totient is φ = 763793280.

The previous prime is 768036733. The next prime is 768036779. The reversal of 768036757 is 757630867.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 296321796 + 471714961 = 17214^2 + 21719^2 .

It is a cyclic number.

It is not a de Polignac number, because 768036757 - 2¹⁵ = 768003989 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 768036757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768037757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121468 + ... + 2121829.

It is an arithmetic number, because the mean of its divisors is an integer number (193070059).

Almost surely, 2^768036757 is an apocalyptic number.

It is an amenable number.

768036757 is a deficient number, since it is larger than the sum of its proper divisors (4243479).

768036757 is a wasteful number, since it uses less digits than its factorization.

768036757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243478.

The product of its (nonzero) digits is 1481760, while the sum is 49.

The square root of 768036757 is about 27713.4760901623. The cubic root of 768036757 is about 915.7860036226.

The spelling of 768036757 in words is "seven hundred sixty-eight million, thirty-six thousand, seven hundred fifty-seven".