76856963 has 2 divisors, whose sum is σ = 76856964. Its totient is φ = 76856962.

The previous prime is 76856959. The next prime is 76856981. The reversal of 76856963 is 36965867.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76856963 - 2² = 76856959 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70856963) 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, 38428481 + 38428482.

It is an arithmetic number, because the mean of its divisors is an integer number (38428482).

Almost surely, 2^76856963 is an apocalyptic number.

76856963 is a deficient number, since it is larger than the sum of its proper divisors (1).

76856963 is an equidigital number, since it uses as much as digits as its factorization.

76856963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 76856963 is about 8766.8103093428. The cubic root of 76856963 is about 425.1684923615.

The spelling of 76856963 in words is "seventy-six million, eight hundred fifty-six thousand, nine hundred sixty-three".