76719641 has 2 divisors, whose sum is σ = 76719642. Its totient is φ = 76719640.

The previous prime is 76719581. The next prime is 76719649. The reversal of 76719641 is 14691767.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55190041 + 21529600 = 7429^2 + 4640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76719641 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 (76719649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38359820 + 38359821.

It is an arithmetic number, because the mean of its divisors is an integer number (38359821).

Almost surely, 2^76719641 is an apocalyptic number.

It is an amenable number.

76719641 is a deficient number, since it is larger than the sum of its proper divisors (1).

76719641 is an equidigital number, since it uses as much as digits as its factorization.

76719641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 41.

The square root of 76719641 is about 8758.9748829415. The cubic root of 76719641 is about 424.9151221503.

The spelling of 76719641 in words is "seventy-six million, seven hundred nineteen thousand, six hundred forty-one".