763543961 has 2 divisors, whose sum is σ = 763543962. Its totient is φ = 763543960.

The previous prime is 763543889. The next prime is 763544003. The reversal of 763543961 is 169345367.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 607918336 + 155625625 = 24656^2 + 12475^2 .

It is an emirp because it is prime and its reverse (169345367) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 763543961 - 2¹⁴ = 763527577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (763543061) 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, 381771980 + 381771981.

It is an arithmetic number, because the mean of its divisors is an integer number (381771981).

Almost surely, 2^763543961 is an apocalyptic number.

It is an amenable number.

763543961 is a deficient number, since it is larger than the sum of its proper divisors (1).

763543961 is an equidigital number, since it uses as much as digits as its factorization.

763543961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 44.

The square root of 763543961 is about 27632.2992347723. The cubic root of 763543961 is about 913.9968146732.

The spelling of 763543961 in words is "seven hundred sixty-three million, five hundred forty-three thousand, nine hundred sixty-one".