76685747 has 2 divisors, whose sum is σ = 76685748. Its totient is φ = 76685746.

The previous prime is 76685731. The next prime is 76685761. The reversal of 76685747 is 74758667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76685747 - 2⁴ = 76685731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76685695 and 76685704.

It is not a weakly prime, because it can be changed into another prime (76685347) 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, 38342873 + 38342874.

It is an arithmetic number, because the mean of its divisors is an integer number (38342874).

Almost surely, 2^76685747 is an apocalyptic number.

76685747 is a deficient number, since it is larger than the sum of its proper divisors (1).

76685747 is an equidigital number, since it uses as much as digits as its factorization.

76685747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 50.

The square root of 76685747 is about 8757.0398537405. The cubic root of 76685747 is about 424.8525384608.

The spelling of 76685747 in words is "seventy-six million, six hundred eighty-five thousand, seven hundred forty-seven".