76629691 has 2 divisors, whose sum is σ = 76629692. Its totient is φ = 76629690.

The previous prime is 76629689. The next prime is 76629703. The reversal of 76629691 is 19692667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76629691 - 2¹ = 76629689 is a prime.

Together with 76629689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (76629601) 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, 38314845 + 38314846.

It is an arithmetic number, because the mean of its divisors is an integer number (38314846).

Almost surely, 2^76629691 is an apocalyptic number.

76629691 is a deficient number, since it is larger than the sum of its proper divisors (1).

76629691 is an equidigital number, since it uses as much as digits as its factorization.

76629691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 76629691 is about 8753.8386437037. The cubic root of 76629691 is about 424.7489931906.

The spelling of 76629691 in words is "seventy-six million, six hundred twenty-nine thousand, six hundred ninety-one".