76912091 has 2 divisors, whose sum is σ = 76912092. Its totient is φ = 76912090.

The previous prime is 76912067. The next prime is 76912093. The reversal of 76912091 is 19021967.

It is a strong prime.

It is an emirp because it is prime and its reverse (19021967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76912091 - 2¹⁰ = 76911067 is a prime.

It is a Sophie Germain prime.

Together with 76912093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76912093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38456045 + 38456046.

It is an arithmetic number, because the mean of its divisors is an integer number (38456046).

Almost surely, 2^76912091 is an apocalyptic number.

76912091 is a deficient number, since it is larger than the sum of its proper divisors (1).

76912091 is an equidigital number, since it uses as much as digits as its factorization.

76912091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 76912091 is about 8769.9538767316. The cubic root of 76912091 is about 425.2701230875.

The spelling of 76912091 in words is "seventy-six million, nine hundred twelve thousand, ninety-one".