76960661 has 2 divisors, whose sum is σ = 76960662. Its totient is φ = 76960660.

The previous prime is 76960643. The next prime is 76960747. The reversal of 76960661 is 16606967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76562500 + 398161 = 8750^2 + 631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76960661 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76960061) 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, 38480330 + 38480331.

It is an arithmetic number, because the mean of its divisors is an integer number (38480331).

Almost surely, 2^76960661 is an apocalyptic number.

It is an amenable number.

76960661 is a deficient number, since it is larger than the sum of its proper divisors (1).

76960661 is an equidigital number, since it uses as much as digits as its factorization.

76960661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 76960661 is about 8772.7225534608. The cubic root of 76960661 is about 425.3596236379.

The spelling of 76960661 in words is "seventy-six million, nine hundred sixty thousand, six hundred sixty-one".