756650761 has 2 divisors, whose sum is σ = 756650762. Its totient is φ = 756650760.

The previous prime is 756650753. The next prime is 756650789. The reversal of 756650761 is 167056657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 715241536 + 41409225 = 26744^2 + 6435^2 .

It is a cyclic number.

It is not a de Polignac number, because 756650761 - 2³ = 756650753 is a prime.

It is not a weakly prime, because it can be changed into another prime (756650561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378325380 + 378325381.

It is an arithmetic number, because the mean of its divisors is an integer number (378325381).

Almost surely, 2^756650761 is an apocalyptic number.

It is an amenable number.

756650761 is a deficient number, since it is larger than the sum of its proper divisors (1).

756650761 is an equidigital number, since it uses as much as digits as its factorization.

756650761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 756650761 is about 27507.2855985464. The cubic root of 756650761 is about 911.2380046504.

The spelling of 756650761 in words is "seven hundred fifty-six million, six hundred fifty thousand, seven hundred sixty-one".