860081 has 4 divisors (see below), whose sum is σ = 910692. Its totient is φ = 809472.

The previous prime is 860077. The next prime is 860087. The reversal of 860081 is 180068.

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 547600 + 312481 = 740^2 + 559^2 .

It is not a de Polignac number, because 860081 - 2² = 860077 is a prime.

It is a super-2 number, since 2×860081² = 1479478653122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (860087) 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, 25280 + ... + 25313.

It is an arithmetic number, because the mean of its divisors is an integer number (227673).

2⁸⁶⁰⁰⁸¹ is an apocalyptic number.

It is an amenable number.

860081 is a deficient number, since it is larger than the sum of its proper divisors (50611).

860081 is a wasteful number, since it uses less digits than its factorization.

860081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50610.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 860081 is about 927.4055207944. The cubic root of 860081 is about 95.0998396358.

The spelling of 860081 in words is "eight hundred sixty thousand, eighty-one".