80105863 has 2 divisors, whose sum is σ = 80105864. Its totient is φ = 80105862.

The previous prime is 80105833. The next prime is 80105899. The reversal of 80105863 is 36850108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80105863 - 2¹³ = 80097671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80105833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40052931 + 40052932.

It is an arithmetic number, because the mean of its divisors is an integer number (40052932).

Almost surely, 2^80105863 is an apocalyptic number.

80105863 is a deficient number, since it is larger than the sum of its proper divisors (1).

80105863 is an equidigital number, since it uses as much as digits as its factorization.

80105863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 80105863 is about 8950.1878751231. The cubic root of 80105863 is about 431.0769166652.

The spelling of 80105863 in words is "eighty million, one hundred five thousand, eight hundred sixty-three".