76672691 has 2 divisors, whose sum is σ = 76672692. Its totient is φ = 76672690.

The previous prime is 76672633. The next prime is 76672693. The reversal of 76672691 is 19627667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76672691 - 2⁶ = 76672627 is a prime.

Together with 76672693, 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 (76672693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38336345 + 38336346.

It is an arithmetic number, because the mean of its divisors is an integer number (38336346).

Almost surely, 2^76672691 is an apocalyptic number.

76672691 is a deficient number, since it is larger than the sum of its proper divisors (1).

76672691 is an equidigital number, since it uses as much as digits as its factorization.

76672691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 44.

The square root of 76672691 is about 8756.2943646271. The cubic root of 76672691 is about 424.8284262462.

The spelling of 76672691 in words is "seventy-six million, six hundred seventy-two thousand, six hundred ninety-one".