9857152 has 32 divisors (see below), whose sum is σ = 20021580. Its totient is φ = 4832256.

The previous prime is 9857149. The next prime is 9857153. The reversal of 9857152 is 2517589.

It can be written as a sum of positive squares in 2 ways, for example, as 8156736 + 1700416 = 2856^2 + 1304^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×9857152² = 194326891102208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9857153) 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, 6058 + ... + 7510.

Almost surely, 2^9857152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9857152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10010790).

9857152 is an abundant number, since it is smaller than the sum of its proper divisors (10164428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9857152 is a wasteful number, since it uses less digits than its factorization.

9857152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520 (or 1508 counting only the distinct ones).

The product of its digits is 25200, while the sum is 37.

The square root of 9857152 is about 3139.6101668838. The cubic root of 9857152 is about 214.4126895289.

The spelling of 9857152 in words is "nine million, eight hundred fifty-seven thousand, one hundred fifty-two".