9995749 has 4 divisors (see below), whose sum is σ = 10340460. Its totient is φ = 9651040.

The previous prime is 9995743. The next prime is 9995801. The reversal of 9995749 is 9475999.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7387524 + 2608225 = 2718^2 + 1615^2 .

It is a cyclic number.

It is not a de Polignac number, because 9995749 - 2⁵ = 9995717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9995696 and 9995705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9995743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172312 + ... + 172369.

It is an arithmetic number, because the mean of its divisors is an integer number (2585115).

Almost surely, 2^9995749 is an apocalyptic number.

It is an amenable number.

9995749 is a deficient number, since it is larger than the sum of its proper divisors (344711).

9995749 is a wasteful number, since it uses less digits than its factorization.

9995749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344710.

The product of its digits is 918540, while the sum is 52.

The square root of 9995749 is about 3161.6054466046. The cubic root of 9995749 is about 215.4129363367.

The spelling of 9995749 in words is "nine million, nine hundred ninety-five thousand, seven hundred forty-nine".