9812745 has 20 divisors (see below), whose sum is σ = 17590980. Its totient is φ = 5233248.

The previous prime is 9812741. The next prime is 9812749. The reversal of 9812745 is 5472189.

9812745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9812741) and next prime (9812749).

It can be written as a sum of positive squares in 2 ways, for example, as 2178576 + 7634169 = 1476^2 + 2763^2 .

It is not a de Polignac number, because 9812745 - 2² = 9812741 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9812741) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11710 + ... + 12519.

It is an arithmetic number, because the mean of its divisors is an integer number (879549).

Almost surely, 2^9812745 is an apocalyptic number.

It is an amenable number.

9812745 is a deficient number, since it is larger than the sum of its proper divisors (7778235).

9812745 is a wasteful number, since it uses less digits than its factorization.

9812745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24246 (or 24237 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 9812745 is about 3132.5301275487. The cubic root of 9812745 is about 214.0902245690.

The spelling of 9812745 in words is "nine million, eight hundred twelve thousand, seven hundred forty-five".