77663039 has 2 divisors, whose sum is σ = 77663040. Its totient is φ = 77663038.

The previous prime is 77663011. The next prime is 77663077. The reversal of 77663039 is 93036677.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77663039 - 2¹² = 77658943 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 77662987 and 77663005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77663009) 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, 38831519 + 38831520.

It is an arithmetic number, because the mean of its divisors is an integer number (38831520).

Almost surely, 2^77663039 is an apocalyptic number.

77663039 is a deficient number, since it is larger than the sum of its proper divisors (1).

77663039 is an equidigital number, since it uses as much as digits as its factorization.

77663039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 41.

The square root of 77663039 is about 8812.6635587659. The cubic root of 77663039 is about 426.6497153774.

The spelling of 77663039 in words is "seventy-seven million, six hundred sixty-three thousand, thirty-nine".