860906 has 4 divisors (see below), whose sum is σ = 1291362. Its totient is φ = 430452.

The previous prime is 860891. The next prime is 860911. The reversal of 860906 is 609068.

860906 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 only one way, i.e., 625681 + 235225 = 791^2 + 485^2 .

It is an unprimeable number.

860906 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 as a sum of consecutive naturals, namely, 215225 + ... + 215228.

2⁸⁶⁰⁹⁰⁶ is an apocalyptic number.

860906 is a deficient number, since it is larger than the sum of its proper divisors (430456).

860906 is a wasteful number, since it uses less digits than its factorization.

860906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430455.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 860906 is about 927.8502034273. The cubic root of 860906 is about 95.1302368872.

The spelling of 860906 in words is "eight hundred sixty thousand, nine hundred six".