76656667 has 2 divisors, whose sum is σ = 76656668. Its totient is φ = 76656666.

The previous prime is 76656653. The next prime is 76656721. The reversal of 76656667 is 76665667.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76656667 is a prime.

It is a Chen prime.

It is a zygodrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 76656667.

It is not a weakly prime, because it can be changed into another prime (76656607) 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, 38328333 + 38328334.

It is an arithmetic number, because the mean of its divisors is an integer number (38328334).

Almost surely, 2^76656667 is an apocalyptic number.

76656667 is a deficient number, since it is larger than the sum of its proper divisors (1).

76656667 is an equidigital number, since it uses as much as digits as its factorization.

76656667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 49.

The square root of 76656667 is about 8755.3793178822. The cubic root of 76656667 is about 424.7988288980.

The spelling of 76656667 in words is "seventy-six million, six hundred fifty-six thousand, six hundred sixty-seven".