864864001 has 6 divisors (see below), whose sum is σ = 918731270. Its totient is φ = 813989376.

The previous prime is 864863999. The next prime is 864864023. The reversal of 864864001 is 100468468.

It can be written as a sum of positive squares in 3 ways, for example, as 389667600 + 475196401 = 19740^2 + 21799^2 .

It is not a de Polignac number, because 864864001 - 2¹ = 864863999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864862001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1496016 + ... + 1496593.

Almost surely, 2^864864001 is an apocalyptic number.

It is an amenable number.

864864001 is a deficient number, since it is larger than the sum of its proper divisors (53867269).

864864001 is a wasteful number, since it uses less digits than its factorization.

864864001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992643 (or 2992626 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 864864001 is about 29408.5701964580. The cubic root of 864864001 is about 952.7580059905.

The spelling of 864864001 in words is "eight hundred sixty-four million, eight hundred sixty-four thousand, one".