80286391 has 2 divisors, whose sum is σ = 80286392. Its totient is φ = 80286390.

The previous prime is 80286383. The next prime is 80286397. The reversal of 80286391 is 19368208.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80286391 - 2³ = 80286383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80286391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80286397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40143195 + 40143196.

It is an arithmetic number, because the mean of its divisors is an integer number (40143196).

Almost surely, 2^80286391 is an apocalyptic number.

80286391 is a deficient number, since it is larger than the sum of its proper divisors (1).

80286391 is an equidigital number, since it uses as much as digits as its factorization.

80286391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 80286391 is about 8960.2673509221. The cubic root of 80286391 is about 431.4005012479.

The spelling of 80286391 in words is "eighty million, two hundred eighty-six thousand, three hundred ninety-one".