76648057 has 2 divisors, whose sum is σ = 76648058. Its totient is φ = 76648056.

The previous prime is 76648031. The next prime is 76648079. The reversal of 76648057 is 75084667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74718736 + 1929321 = 8644^2 + 1389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76648057 is a prime.

It is not a weakly prime, because it can be changed into another prime (76648007) 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, 38324028 + 38324029.

It is an arithmetic number, because the mean of its divisors is an integer number (38324029).

Almost surely, 2^76648057 is an apocalyptic number.

It is an amenable number.

76648057 is a deficient number, since it is larger than the sum of its proper divisors (1).

76648057 is an equidigital number, since it uses as much as digits as its factorization.

76648057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 76648057 is about 8754.8876063602. The cubic root of 76648057 is about 424.7829239763.

The spelling of 76648057 in words is "seventy-six million, six hundred forty-eight thousand, fifty-seven".