76947851 has 2 divisors, whose sum is σ = 76947852. Its totient is φ = 76947850.

The previous prime is 76947847. The next prime is 76947877. The reversal of 76947851 is 15874967.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76947851 - 2² = 76947847 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76947796 and 76947805.

It is not a weakly prime, because it can be changed into another prime (76947821) 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, 38473925 + 38473926.

It is an arithmetic number, because the mean of its divisors is an integer number (38473926).

Almost surely, 2^76947851 is an apocalyptic number.

76947851 is a deficient number, since it is larger than the sum of its proper divisors (1).

76947851 is an equidigital number, since it uses as much as digits as its factorization.

76947851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 47.

The square root of 76947851 is about 8771.9924190574. The cubic root of 76947851 is about 425.3360221466.

The spelling of 76947851 in words is "seventy-six million, nine hundred forty-seven thousand, eight hundred fifty-one".