765656741 has 2 divisors, whose sum is σ = 765656742. Its totient is φ = 765656740.

The previous prime is 765656719. The next prime is 765656767. The reversal of 765656741 is 147656567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 584188900 + 181467841 = 24170^2 + 13471^2 .

It is an emirp because it is prime and its reverse (147656567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 765656741 - 2⁶ = 765656677 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (765656701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382828370 + 382828371.

It is an arithmetic number, because the mean of its divisors is an integer number (382828371).

Almost surely, 2^765656741 is an apocalyptic number.

It is an amenable number.

765656741 is a deficient number, since it is larger than the sum of its proper divisors (1).

765656741 is an equidigital number, since it uses as much as digits as its factorization.

765656741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 47.

The square root of 765656741 is about 27670.5030854157. The cubic root of 765656741 is about 914.8390695104.

The spelling of 765656741 in words is "seven hundred sixty-five million, six hundred fifty-six thousand, seven hundred forty-one".