77390683 has 2 divisors, whose sum is σ = 77390684. Its totient is φ = 77390682.

The previous prime is 77390659. The next prime is 77390701. The reversal of 77390683 is 38609377.

It is a strong prime.

It is an emirp because it is prime and its reverse (38609377) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77390683 is a prime.

It is not a weakly prime, because it can be changed into another prime (77390603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38695341 + 38695342.

It is an arithmetic number, because the mean of its divisors is an integer number (38695342).

Almost surely, 2^77390683 is an apocalyptic number.

77390683 is a deficient number, since it is larger than the sum of its proper divisors (1).

77390683 is an equidigital number, since it uses as much as digits as its factorization.

77390683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 77390683 is about 8797.1974514615. The cubic root of 77390683 is about 426.1503928725.

The spelling of 77390683 in words is "seventy-seven million, three hundred ninety thousand, six hundred eighty-three".