76681733 has 2 divisors, whose sum is σ = 76681734. Its totient is φ = 76681732.

The previous prime is 76681729. The next prime is 76681751. The reversal of 76681733 is 33718667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74269924 + 2411809 = 8618^2 + 1553^2 .

It is a cyclic number.

It is not a de Polignac number, because 76681733 - 2² = 76681729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76681753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38340866 + 38340867.

It is an arithmetic number, because the mean of its divisors is an integer number (38340867).

Almost surely, 2^76681733 is an apocalyptic number.

It is an amenable number.

76681733 is a deficient number, since it is larger than the sum of its proper divisors (1).

76681733 is an equidigital number, since it uses as much as digits as its factorization.

76681733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 41.

The square root of 76681733 is about 8756.8106637063. The cubic root of 76681733 is about 424.8451255759.

The spelling of 76681733 in words is "seventy-six million, six hundred eighty-one thousand, seven hundred thirty-three".