864710081 has 4 divisors (see below), whose sum is σ = 894527700. Its totient is φ = 834892464.

The previous prime is 864710071. The next prime is 864710111. The reversal of 864710081 is 180017468.

864710081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193071025 + 671639056 = 13895^2 + 25916^2 .

It is a cyclic number.

It is not a de Polignac number, because 864710081 - 2¹⁸ = 864447937 is a prime.

It is a super-2 number, since 2×864710081² = 1495447048366053122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864710051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14908766 + ... + 14908823.

It is an arithmetic number, because the mean of its divisors is an integer number (223631925).

Almost surely, 2^864710081 is an apocalyptic number.

It is an amenable number.

864710081 is a deficient number, since it is larger than the sum of its proper divisors (29817619).

864710081 is a wasteful number, since it uses less digits than its factorization.

864710081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29817618.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 864710081 is about 29405.9531557812. The cubic root of 864710081 is about 952.7014818000.

The spelling of 864710081 in words is "eight hundred sixty-four million, seven hundred ten thousand, eighty-one".