864262897 has 2 divisors, whose sum is σ = 864262898. Its totient is φ = 864262896.

The previous prime is 864262877. The next prime is 864262969. The reversal of 864262897 is 798262468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513974241 + 350288656 = 22671^2 + 18716^2 .

It is a cyclic number.

It is not a de Polignac number, because 864262897 - 2¹¹ = 864260849 is a prime.

It is not a weakly prime, because it can be changed into another prime (864262877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432131448 + 432131449.

It is an arithmetic number, because the mean of its divisors is an integer number (432131449).

Almost surely, 2^864262897 is an apocalyptic number.

It is an amenable number.

864262897 is a deficient number, since it is larger than the sum of its proper divisors (1).

864262897 is an equidigital number, since it uses as much as digits as its factorization.

864262897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 52.

The square root of 864262897 is about 29398.3485420525. The cubic root of 864262897 is about 952.5372239249.

The spelling of 864262897 in words is "eight hundred sixty-four million, two hundred sixty-two thousand, eight hundred ninety-seven".