10857855 has 8 divisors (see below), whose sum is σ = 17372592. Its totient is φ = 5790848.

The previous prime is 10857853. The next prime is 10857857. The reversal of 10857855 is 55875801.

It is an interprime number because it is at equal distance from previous prime (10857853) and next prime (10857857).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10857855 - 2¹ = 10857853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10857851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361914 + ... + 361943.

It is an arithmetic number, because the mean of its divisors is an integer number (2171574).

Almost surely, 2^10857855 is an apocalyptic number.

10857855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10857855 is a deficient number, since it is larger than the sum of its proper divisors (6514737).

10857855 is an equidigital number, since it uses as much as digits as its factorization.

10857855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723865.

The product of its (nonzero) digits is 56000, while the sum is 39.

The square root of 10857855 is about 3295.1259459996. The cubic root of 10857855 is about 221.4358902491.

The spelling of 10857855 in words is "ten million, eight hundred fifty-seven thousand, eight hundred fifty-five".