77982059 has 2 divisors, whose sum is σ = 77982060. Its totient is φ = 77982058.

The previous prime is 77982049. The next prime is 77982089. The reversal of 77982059 is 95028977.

It is a weak prime.

It is an emirp because it is prime and its reverse (95028977) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77982059 - 2⁸ = 77981803 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77982049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38991029 + 38991030.

It is an arithmetic number, because the mean of its divisors is an integer number (38991030).

Almost surely, 2^77982059 is an apocalyptic number.

77982059 is a deficient number, since it is larger than the sum of its proper divisors (1).

77982059 is an equidigital number, since it uses as much as digits as its factorization.

77982059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 77982059 is about 8830.7450988011. The cubic root of 77982059 is about 427.2331067820.

The spelling of 77982059 in words is "seventy-seven million, nine hundred eighty-two thousand, fifty-nine".