77683061 has 2 divisors, whose sum is σ = 77683062. Its totient is φ = 77683060.

The previous prime is 77683051. The next prime is 77683063. The reversal of 77683061 is 16038677.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65918161 + 11764900 = 8119^2 + 3430^2 .

It is an emirp because it is prime and its reverse (16038677) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77683061 - 2²² = 73488757 is a prime.

Together with 77683063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77683063) 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, 38841530 + 38841531.

It is an arithmetic number, because the mean of its divisors is an integer number (38841531).

Almost surely, 2^77683061 is an apocalyptic number.

It is an amenable number.

77683061 is a deficient number, since it is larger than the sum of its proper divisors (1).

77683061 is an equidigital number, since it uses as much as digits as its factorization.

77683061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 77683061 is about 8813.7994644761. The cubic root of 77683061 is about 426.6863765173.

The spelling of 77683061 in words is "seventy-seven million, six hundred eighty-three thousand, sixty-one".