9813725 has 6 divisors (see below), whose sum is σ = 12169050. Its totient is φ = 7850960.

The previous prime is 9813703. The next prime is 9813731. The reversal of 9813725 is 5273189.

It can be written as a sum of positive squares in 3 ways, for example, as 1582564 + 8231161 = 1258^2 + 2869^2 .

It is not a de Polignac number, because 9813725 - 2⁸ = 9813469 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 196250 + ... + 196299.

It is an arithmetic number, because the mean of its divisors is an integer number (2028175).

Almost surely, 2^9813725 is an apocalyptic number.

It is an amenable number.

9813725 is a deficient number, since it is larger than the sum of its proper divisors (2355325).

9813725 is a wasteful number, since it uses less digits than its factorization.

9813725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392559 (or 392554 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 9813725 is about 3132.6865467199. The cubic root of 9813725 is about 214.0973514037.

The spelling of 9813725 in words is "nine million, eight hundred thirteen thousand, seven hundred twenty-five".