80286397 has 2 divisors, whose sum is σ = 80286398. Its totient is φ = 80286396.

The previous prime is 80286391. The next prime is 80286407. The reversal of 80286397 is 79368208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42758521 + 37527876 = 6539^2 + 6126^2 .

It is a cyclic number.

It is not a de Polignac number, because 80286397 - 2²³ = 71897789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80286391) 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, 40143198 + 40143199.

It is an arithmetic number, because the mean of its divisors is an integer number (40143199).

Almost surely, 2^80286397 is an apocalyptic number.

It is an amenable number.

80286397 is a deficient number, since it is larger than the sum of its proper divisors (1).

80286397 is an equidigital number, since it uses as much as digits as its factorization.

80286397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 80286397 is about 8960.2676857335. The cubic root of 80286397 is about 431.4005119945.

The spelling of 80286397 in words is "eighty million, two hundred eighty-six thousand, three hundred ninety-seven".