9042857 has 4 divisors (see below), whose sum is σ = 9253200. Its totient is φ = 8832516.

The previous prime is 9042829. The next prime is 9042877. The reversal of 9042857 is 7582409.

It is a happy number.

9042857 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9042857 - 2²⁰ = 7994281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9042877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105107 + ... + 105192.

It is an arithmetic number, because the mean of its divisors is an integer number (2313300).

Almost surely, 2^9042857 is an apocalyptic number.

It is an amenable number.

9042857 is a deficient number, since it is larger than the sum of its proper divisors (210343).

9042857 is a wasteful number, since it uses less digits than its factorization.

9042857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210342.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 9042857 is about 3007.1343501746. The cubic root of 9042857 is about 208.3380305430.

The spelling of 9042857 in words is "nine million, forty-two thousand, eight hundred fifty-seven".