77000879 has 2 divisors, whose sum is σ = 77000880. Its totient is φ = 77000878.

The previous prime is 77000873. The next prime is 77000881. The reversal of 77000879 is 97800077.

It is a strong prime.

It is an emirp because it is prime and its reverse (97800077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77000879 - 2¹⁶ = 76935343 is a prime.

Together with 77000881, 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 (77000873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38500439 + 38500440.

It is an arithmetic number, because the mean of its divisors is an integer number (38500440).

Almost surely, 2^77000879 is an apocalyptic number.

77000879 is a deficient number, since it is larger than the sum of its proper divisors (1).

77000879 is an equidigital number, since it uses as much as digits as its factorization.

77000879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 77000879 is about 8775.0144729225. The cubic root of 77000879 is about 425.4337053573.

The spelling of 77000879 in words is "seventy-seven million, eight hundred seventy-nine", and thus it is an aban number.