863940097 has 2 divisors, whose sum is σ = 863940098. Its totient is φ = 863940096.

The previous prime is 863940067. The next prime is 863940113. The reversal of 863940097 is 790049368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 629207056 + 234733041 = 25084^2 + 15321^2 .

It is a cyclic number.

It is not a de Polignac number, because 863940097 - 2²⁷ = 729722369 is a prime.

It is not a weakly prime, because it can be changed into another prime (863940067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431970048 + 431970049.

It is an arithmetic number, because the mean of its divisors is an integer number (431970049).

Almost surely, 2^863940097 is an apocalyptic number.

It is an amenable number.

863940097 is a deficient number, since it is larger than the sum of its proper divisors (1).

863940097 is an equidigital number, since it uses as much as digits as its factorization.

863940097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 863940097 is about 29392.8579250130. The cubic root of 863940097 is about 952.4186190784.

The spelling of 863940097 in words is "eight hundred sixty-three million, nine hundred forty thousand, ninety-seven".