756641317 has 8 divisors (see below), whose sum is σ = 761591160. Its totient is φ = 751707840.

The previous prime is 756641299. The next prime is 756641387. The reversal of 756641317 is 713146657.

756641317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3632836 + 753008481 = 1906^2 + 27441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 756641317 - 2²⁷ = 622423589 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 756641317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (756641387) 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, 96567 + ... + 104107.

It is an arithmetic number, because the mean of its divisors is an integer number (95198895).

Almost surely, 2^756641317 is an apocalyptic number.

It is an amenable number.

756641317 is a deficient number, since it is larger than the sum of its proper divisors (4949843).

756641317 is a wasteful number, since it uses less digits than its factorization.

756641317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8183.

The product of its digits is 105840, while the sum is 40.

The square root of 756641317 is about 27507.1139343989. The cubic root of 756641317 is about 911.2342134837.

The spelling of 756641317 in words is "seven hundred fifty-six million, six hundred forty-one thousand, three hundred seventeen".