858993568 has 12 divisors (see below), whose sum is σ = 1691143650. Its totient is φ = 429496768.

The previous prime is 858993511. The next prime is 858993589. The reversal of 858993568 is 865399858.

It can be written as a sum of positive squares in only one way, i.e., 854275984 + 4717584 = 29228^2 + 2172^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13421743 + ... + 13421806.

Almost surely, 2^858993568 is an apocalyptic number.

It is an amenable number.

858993568 is a deficient number, since it is larger than the sum of its proper divisors (832150082).

858993568 is a wasteful number, since it uses less digits than its factorization.

858993568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26843559 (or 26843551 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 61.

The square root of 858993568 is about 29308.5920507963. The cubic root of 858993568 is about 950.5974332581.

The spelling of 858993568 in words is "eight hundred fifty-eight million, nine hundred ninety-three thousand, five hundred sixty-eight".