858016 has 12 divisors (see below), whose sum is σ = 1689282. Its totient is φ = 428992.

The previous prime is 858001. The next prime is 858029. The reversal of 858016 is 610858.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 646416 + 211600 = 804^2 + 460^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13375 + ... + 13438.

2⁸⁵⁸⁰¹⁶ is an apocalyptic number.

It is an amenable number.

858016 is a deficient number, since it is larger than the sum of its proper divisors (831266).

858016 is a wasteful number, since it uses less digits than its factorization.

858016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26823 (or 26815 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 858016 is about 926.2915307828. The cubic root of 858016 is about 95.0236690793.

The spelling of 858016 in words is "eight hundred fifty-eight thousand, sixteen".