9865749 has 8 divisors (see below), whose sum is σ = 13190560. Its totient is φ = 6559056.

The previous prime is 9865747. The next prime is 9865753. The reversal of 9865749 is 9475689.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9865749 - 2¹ = 9865747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9865698 and 9865707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9865747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3202 + ... + 5475.

It is an arithmetic number, because the mean of its divisors is an integer number (1648820).

Almost surely, 2^9865749 is an apocalyptic number.

It is an amenable number.

9865749 is a deficient number, since it is larger than the sum of its proper divisors (3324811).

9865749 is a wasteful number, since it uses less digits than its factorization.

9865749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9059.

The product of its digits is 544320, while the sum is 48.

The square root of 9865749 is about 3140.9789875133. The cubic root of 9865749 is about 214.4750053738.

The spelling of 9865749 in words is "nine million, eight hundred sixty-five thousand, seven hundred forty-nine".