80005879 has 2 divisors, whose sum is σ = 80005880. Its totient is φ = 80005878.

The previous prime is 80005873. The next prime is 80005897. The reversal of 80005879 is 97850008.

Together with next prime (80005897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80005879 - 2⁵ = 80005847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80005873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40002939 + 40002940.

It is an arithmetic number, because the mean of its divisors is an integer number (40002940).

Almost surely, 2^80005879 is an apocalyptic number.

80005879 is a deficient number, since it is larger than the sum of its proper divisors (1).

80005879 is an equidigital number, since it uses as much as digits as its factorization.

80005879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 80005879 is about 8944.6005500525. The cubic root of 80005879 is about 430.8974926825.

The spelling of 80005879 in words is "eighty million, five thousand, eight hundred seventy-nine".