867870081 has 12 divisors (see below), whose sum is σ = 1350020308. Its totient is φ = 534073824.

The previous prime is 867870067. The next prime is 867870089. The reversal of 867870081 is 180078768.

867870081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 227527056 + 640343025 = 15084^2 + 25305^2 .

It is not a de Polignac number, because 867870081 - 2¹⁴ = 867853697 is a prime.

It is a super-2 number, since 2×867870081² = 1506396954989893122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (867870089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3708730 + ... + 3708963.

Almost surely, 2^867870081 is an apocalyptic number.

It is an amenable number.

867870081 is a deficient number, since it is larger than the sum of its proper divisors (482150227).

867870081 is a wasteful number, since it uses less digits than its factorization.

867870081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7417712 (or 7417709 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 867870081 is about 29459.6347737035. The cubic root of 867870081 is about 953.8605897047.

The spelling of 867870081 in words is "eight hundred sixty-seven million, eight hundred seventy thousand, eighty-one".