761709961 has 2 divisors, whose sum is σ = 761709962. Its totient is φ = 761709960.

The previous prime is 761709941. The next prime is 761710043. The reversal of 761709961 is 169907167.

761709961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381459961 + 380250000 = 19531^2 + 19500^2 .

It is a cyclic number.

It is not a de Polignac number, because 761709961 - 2⁷ = 761709833 is a prime.

It is not a weakly prime, because it can be changed into another prime (761709901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380854980 + 380854981.

It is an arithmetic number, because the mean of its divisors is an integer number (380854981).

Almost surely, 2^761709961 is an apocalyptic number.

It is an amenable number.

761709961 is a deficient number, since it is larger than the sum of its proper divisors (1).

761709961 is an equidigital number, since it uses as much as digits as its factorization.

761709961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 761709961 is about 27599.0934814896. The cubic root of 761709961 is about 913.2644342003.

The spelling of 761709961 in words is "seven hundred sixty-one million, seven hundred nine thousand, nine hundred sixty-one".