864466843 has 2 divisors, whose sum is σ = 864466844. Its totient is φ = 864466842.

The previous prime is 864466831. The next prime is 864466877. The reversal of 864466843 is 348664468.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 864466843 - 2²¹ = 862369691 is a prime.

It is not a weakly prime, because it can be changed into another prime (864166843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432233421 + 432233422.

It is an arithmetic number, because the mean of its divisors is an integer number (432233422).

Almost surely, 2^864466843 is an apocalyptic number.

864466843 is a deficient number, since it is larger than the sum of its proper divisors (1).

864466843 is an equidigital number, since it uses as much as digits as its factorization.

864466843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2654208, while the sum is 49.

The square root of 864466843 is about 29401.8170016753. The cubic root of 864466843 is about 952.6121435967.

The spelling of 864466843 in words is "eight hundred sixty-four million, four hundred sixty-six thousand, eight hundred forty-three".