76565473 has 2 divisors, whose sum is σ = 76565474. Its totient is φ = 76565472.

The previous prime is 76565453. The next prime is 76565483. The reversal of 76565473 is 37456567.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75203584 + 1361889 = 8672^2 + 1167^2 .

It is an emirp because it is prime and its reverse (37456567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76565473 - 2⁵ = 76565441 is a prime.

It is not a weakly prime, because it can be changed into another prime (76565453) 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, 38282736 + 38282737.

It is an arithmetic number, because the mean of its divisors is an integer number (38282737).

Almost surely, 2^76565473 is an apocalyptic number.

It is an amenable number.

76565473 is a deficient number, since it is larger than the sum of its proper divisors (1).

76565473 is an equidigital number, since it uses as much as digits as its factorization.

76565473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 43.

The square root of 76565473 is about 8750.1698840651. The cubic root of 76565473 is about 424.6303091942.

The spelling of 76565473 in words is "seventy-six million, five hundred sixty-five thousand, four hundred seventy-three".