80897 has 2 divisors, whose sum is σ = 80898. Its totient is φ = 80896.

The previous prime is 80863. The next prime is 80909. The reversal of 80897 is 79808.

80897 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78961 + 1936 = 281^2 + 44^2 .

It is a cyclic number.

It is not a de Polignac number, because 80897 - 2⁶ = 80833 is a prime.

It is not a weakly prime, because it can be changed into another prime (88897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40448 + 40449.

It is an arithmetic number, because the mean of its divisors is an integer number (40449).

It is a Proth number, since it is equal to 79 ⋅ 2¹⁰ + 1 and 79 < 2¹⁰.

2⁸⁰⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

80897 is a deficient number, since it is larger than the sum of its proper divisors (1).

80897 is an equidigital number, since it uses as much as digits as its factorization.

80897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 80897 is about 284.4239792985. The cubic root of 80897 is about 43.2491396133.

Subtracting from 80897 its reverse (79808), we obtain a square (1089 = 33²).

The spelling of 80897 in words is "eighty thousand, eight hundred ninety-seven".