860388 has 12 divisors (see below), whose sum is σ = 2007600. Its totient is φ = 286792.

The previous prime is 860383. The next prime is 860393. The reversal of 860388 is 883068.

It is an interprime number because it is at equal distance from previous prime (860383) and next prime (860393).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (860381) by changing a digit.

860388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35838 + ... + 35861.

It is an arithmetic number, because the mean of its divisors is an integer number (167300).

2⁸⁶⁰³⁸⁸ is an apocalyptic number.

It is an amenable number.

860388 is an abundant number, since it is smaller than the sum of its proper divisors (1147212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

860388 is a wasteful number, since it uses less digits than its factorization.

860388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71706 (or 71704 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 860388 is about 927.5710215396. The cubic root of 860388 is about 95.1111533677. Note that the first 4 decimals are identical.

The spelling of 860388 in words is "eight hundred sixty thousand, three hundred eighty-eight".