80879767 has 2 divisors, whose sum is σ = 80879768. Its totient is φ = 80879766.

The previous prime is 80879741. The next prime is 80879779. The reversal of 80879767 is 76797808.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80879767 - 2⁷ = 80879639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80879167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40439883 + 40439884.

It is an arithmetic number, because the mean of its divisors is an integer number (40439884).

Almost surely, 2^80879767 is an apocalyptic number.

80879767 is a deficient number, since it is larger than the sum of its proper divisors (1).

80879767 is an equidigital number, since it uses as much as digits as its factorization.

80879767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 52.

The square root of 80879767 is about 8993.3179083139. The cubic root of 80879767 is about 432.4606836079.

The spelling of 80879767 in words is "eighty million, eight hundred seventy-nine thousand, seven hundred sixty-seven".