80510977 has 2 divisors, whose sum is σ = 80510978. Its totient is φ = 80510976.

The previous prime is 80510959. The next prime is 80510981. The reversal of 80510977 is 77901508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54745201 + 25765776 = 7399^2 + 5076^2 .

It is a cyclic number.

It is not a de Polignac number, because 80510977 - 2⁷ = 80510849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80510957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40255488 + 40255489.

It is an arithmetic number, because the mean of its divisors is an integer number (40255489).

It is a Proth number, since it is equal to 2457 ⋅ 2¹⁵ + 1 and 2457 < 2¹⁵.

Almost surely, 2^80510977 is an apocalyptic number.

It is an amenable number.

80510977 is a deficient number, since it is larger than the sum of its proper divisors (1).

80510977 is an equidigital number, since it uses as much as digits as its factorization.

80510977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 80510977 is about 8972.7909259048. The cubic root of 80510977 is about 431.8023805342.

The spelling of 80510977 in words is "eighty million, five hundred ten thousand, nine hundred seventy-seven".