9741097809 has 27 divisors (see below), whose sum is σ = 14227452187. Its totient is φ = 6422411184.

The previous prime is 9741097799. The next prime is 9741097811. The reversal of 9741097809 is 9087901479.

The square root of 9741097809 is 98697.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9544313025 + 196784784 = 97695^2 + 14028^2 .

It is not a de Polignac number, because 9741097809 - 2²¹ = 9739000657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9741097879) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 49447099 + ... + 49447295.

Almost surely, 2^9741097809 is an apocalyptic number.

9741097809 is the 98697-th square number.

9741097809 is the 49349-th centered octagonal number.

It is an amenable number.

9741097809 is a deficient number, since it is larger than the sum of its proper divisors (4486354378).

9741097809 is an equidigital number, since it uses as much as digits as its factorization.

9741097809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The cubic root of 9741097809 is about 2135.6789544260.

The spelling of 9741097809 in words is "nine billion, seven hundred forty-one million, ninety-seven thousand, eight hundred nine".