10218857 has 8 divisors (see below), whose sum is σ = 11171712. Its totient is φ = 9270000.

The previous prime is 10218841. The next prime is 10218869. The reversal of 10218857 is 75881201.

It is a happy number.

10218857 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 10218857 - 2⁴ = 10218841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10218557) 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, 7643 + ... + 8879.

It is an arithmetic number, because the mean of its divisors is an integer number (1396464).

Almost surely, 2^10218857 is an apocalyptic number.

It is an amenable number.

10218857 is a deficient number, since it is larger than the sum of its proper divisors (952855).

10218857 is a wasteful number, since it uses less digits than its factorization.

10218857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 10218857 is about 3196.6946992167. The cubic root of 10218857 is about 217.0038507956.

The spelling of 10218857 in words is "ten million, two hundred eighteen thousand, eight hundred fifty-seven".