9847457 has 4 divisors (see below), whose sum is σ = 9891840. Its totient is φ = 9803076.

The previous prime is 9847451. The next prime is 9847463. The reversal of 9847457 is 7547489.

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: 7547489 = 43 ⋅175523.

It is an interprime number because it is at equal distance from previous prime (9847451) and next prime (9847463).

It is a cyclic number.

It is not a de Polignac number, because 9847457 - 2¹⁸ = 9585313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9847451) 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, 21857 + ... + 22302.

It is an arithmetic number, because the mean of its divisors is an integer number (2472960).

Almost surely, 2^9847457 is an apocalyptic number.

It is an amenable number.

9847457 is a deficient number, since it is larger than the sum of its proper divisors (44383).

9847457 is a wasteful number, since it uses less digits than its factorization.

9847457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44382.

The product of its digits is 282240, while the sum is 44.

The square root of 9847457 is about 3138.0658055560. The cubic root of 9847457 is about 214.3423712832.

Subtracting from 9847457 its reverse (7547489), we obtain a cube (2299968 = 132³).

The spelling of 9847457 in words is "nine million, eight hundred forty-seven thousand, four hundred fifty-seven".