80320397 has 2 divisors, whose sum is σ = 80320398. Its totient is φ = 80320396.

The previous prime is 80320381. The next prime is 80320421. The reversal of 80320397 is 79302308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45616516 + 34703881 = 6754^2 + 5891^2 .

It is a cyclic number.

It is not a de Polignac number, because 80320397 - 2⁴ = 80320381 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80320997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40160198 + 40160199.

It is an arithmetic number, because the mean of its divisors is an integer number (40160199).

Almost surely, 2^80320397 is an apocalyptic number.

It is an amenable number.

80320397 is a deficient number, since it is larger than the sum of its proper divisors (1).

80320397 is an equidigital number, since it uses as much as digits as its factorization.

80320397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 80320397 is about 8962.1647496573. The cubic root of 80320397 is about 431.4614004635.

The spelling of 80320397 in words is "eighty million, three hundred twenty thousand, three hundred ninety-seven".