9894857 has 4 divisors (see below), whose sum is σ = 11308416. Its totient is φ = 8481300.

The previous prime is 9894851. The next prime is 9894883. The reversal of 9894857 is 7584989.

9894857 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, and also an emirpimes, since its reverse is a distinct semiprime: 7584989 = 53 ⋅143113.

It is a cyclic number.

It is not a de Polignac number, because 9894857 - 2⁶ = 9894793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9894851) 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, 706769 + ... + 706782.

It is an arithmetic number, because the mean of its divisors is an integer number (2827104).

Almost surely, 2^9894857 is an apocalyptic number.

It is an amenable number.

9894857 is a deficient number, since it is larger than the sum of its proper divisors (1413559).

9894857 is a wasteful number, since it uses less digits than its factorization.

9894857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413558.

The product of its digits is 725760, while the sum is 50.

The square root of 9894857 is about 3145.6091619907. The cubic root of 9894857 is about 214.6857279710.

The spelling of 9894857 in words is "nine million, eight hundred ninety-four thousand, eight hundred fifty-seven".