860381 has 2 divisors, whose sum is σ = 860382. Its totient is φ = 860380.

The previous prime is 860369. The next prime is 860383. The reversal of 860381 is 183068.

860381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 737881 + 122500 = 859^2 + 350^2 .

It is a cyclic number.

It is not a de Polignac number, because 860381 - 2⁶ = 860317 is a prime.

It is a super-2 number, since 2×860381² = 1480510930322, which contains 22 as substring.

Together with 860383, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 860381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (860383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430190 + 430191.

It is an arithmetic number, because the mean of its divisors is an integer number (430191).

2⁸⁶⁰³⁸¹ is an apocalyptic number.

It is an amenable number.

860381 is a deficient number, since it is larger than the sum of its proper divisors (1).

860381 is an equidigital number, since it uses as much as digits as its factorization.

860381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 860381 is about 927.5672482359. The cubic root of 860381 is about 95.1108954299.

The spelling of 860381 in words is "eight hundred sixty thousand, three hundred eighty-one".