9749449 has 4 divisors (see below), whose sum is σ = 10322964. Its totient is φ = 9175936.

The previous prime is 9749437. The next prime is 9749461. The reversal of 9749449 is 9449479.

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

It is an interprime number because it is at equal distance from previous prime (9749437) and next prime (9749461).

It can be written as a sum of positive squares in 2 ways, for example, as 3534400 + 6215049 = 1880^2 + 2493^2 .

It is a cyclic number.

It is not a de Polignac number, because 9749449 - 2¹¹ = 9747401 is a prime.

It is a Duffinian number.

9749449 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9749399 and 9749408.

It is not an unprimeable number, because it can be changed into a prime (9749479) 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, 286732 + ... + 286765.

It is an arithmetic number, because the mean of its divisors is an integer number (2580741).

Almost surely, 2^9749449 is an apocalyptic number.

It is an amenable number.

9749449 is a deficient number, since it is larger than the sum of its proper divisors (573515).

9749449 is a wasteful number, since it uses less digits than its factorization.

9749449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573514.

The product of its digits is 326592, while the sum is 46.

The square root of 9749449 is about 3122.4107673399. The cubic root of 9749449 is about 213.6289096759.

The spelling of 9749449 in words is "nine million, seven hundred forty-nine thousand, four hundred forty-nine".