9857745 has 24 divisors (see below), whose sum is σ = 17160000. Its totient is φ = 5234976.

The previous prime is 9857737. The next prime is 9857791. The reversal of 9857745 is 5477589.

9857745 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9857745 - 2³ = 9857737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 9857745.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19506 + ... + 20004.

It is an arithmetic number, because the mean of its divisors is an integer number (715000).

Almost surely, 2^9857745 is an apocalyptic number.

It is an amenable number.

9857745 is a deficient number, since it is larger than the sum of its proper divisors (7302255).

9857745 is a wasteful number, since it uses less digits than its factorization.

9857745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 946 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 9857745 is about 3139.7046039397. The cubic root of 9857745 is about 214.4169890864.

The spelling of 9857745 in words is "nine million, eight hundred fifty-seven thousand, seven hundred forty-five".