76105691 has 2 divisors, whose sum is σ = 76105692. Its totient is φ = 76105690.

The previous prime is 76105649. The next prime is 76105699. The reversal of 76105691 is 19650167.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76105691 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76105699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38052845 + 38052846.

It is an arithmetic number, because the mean of its divisors is an integer number (38052846).

Almost surely, 2^76105691 is an apocalyptic number.

76105691 is a deficient number, since it is larger than the sum of its proper divisors (1).

76105691 is an equidigital number, since it uses as much as digits as its factorization.

76105691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 76105691 is about 8723.8575756371. The cubic root of 76105691 is about 423.7786220490.

The spelling of 76105691 in words is "seventy-six million, one hundred five thousand, six hundred ninety-one".