8400097 has 2 divisors, whose sum is σ = 8400098. Its totient is φ = 8400096.

The previous prime is 8400079. The next prime is 8400131. The reversal of 8400097 is 7900048.

Together with previous prime (8400079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7667361 + 732736 = 2769^2 + 856^2 .

It is a cyclic number.

It is not a de Polignac number, because 8400097 - 2¹⁵ = 8367329 is a prime.

It is a Chen prime.

8400097 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8400047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4200048 + 4200049.

It is an arithmetic number, because the mean of its divisors is an integer number (4200049).

Almost surely, 2^8400097 is an apocalyptic number.

It is an amenable number.

8400097 is a deficient number, since it is larger than the sum of its proper divisors (1).

8400097 is an equidigital number, since it uses as much as digits as its factorization.

8400097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 8400097 is about 2898.2920832794. The cubic root of 8400097 is about 203.2800538238.

The spelling of 8400097 in words is "eight million, four hundred thousand, ninety-seven".