864318401 has 2 divisors, whose sum is σ = 864318402. Its totient is φ = 864318400.

The previous prime is 864318383. The next prime is 864318431. The reversal of 864318401 is 104813468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 825068176 + 39250225 = 28724^2 + 6265^2 .

It is a cyclic number.

It is not a de Polignac number, because 864318401 - 2¹⁸ = 864056257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (864318431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432159200 + 432159201.

It is an arithmetic number, because the mean of its divisors is an integer number (432159201).

Almost surely, 2^864318401 is an apocalyptic number.

It is an amenable number.

864318401 is a deficient number, since it is larger than the sum of its proper divisors (1).

864318401 is an equidigital number, since it uses as much as digits as its factorization.

864318401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 864318401 is about 29399.2925255014. The cubic root of 864318401 is about 952.5576145161.

The spelling of 864318401 in words is "eight hundred sixty-four million, three hundred eighteen thousand, four hundred one".