9747099449 has 8 divisors (see below), whose sum is σ = 9798147528. Its totient is φ = 9696153600.

The previous prime is 9747099431. The next prime is 9747099463. The reversal of 9747099449 is 9449907479.

It can be written as a sum of positive squares in 4 ways, for example, as 2902515625 + 6844583824 = 53875^2 + 82732^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9747099449 - 2²⁴ = 9730322233 is a prime.

It is a super-2 number, since 2×9747099449² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9747099391 and 9747099400.

It is not an unprimeable number, because it can be changed into a prime (9747099149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169499 + ... + 219599.

It is an arithmetic number, because the mean of its divisors is an integer number (1224768441).

Almost surely, 2^9747099449 is an apocalyptic number.

It is an amenable number.

9747099449 is a deficient number, since it is larger than the sum of its proper divisors (51048079).

9747099449 is a wasteful number, since it uses less digits than its factorization.

9747099449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51115.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The square root of 9747099449 is about 98727.3996872196. The cubic root of 9747099449 is about 2136.1174725829.

The spelling of 9747099449 in words is "nine billion, seven hundred forty-seven million, ninety-nine thousand, four hundred forty-nine".