9099641 has 4 divisors (see below), whose sum is σ = 9634932. Its totient is φ = 8564352.

The previous prime is 9099611. The next prime is 9099659. The reversal of 9099641 is 1469909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1469909 = 7 ⋅209987.

It can be written as a sum of positive squares in 2 ways, for example, as 7728400 + 1371241 = 2780^2 + 1171^2 .

It is a cyclic number.

It is not a de Polignac number, because 9099641 - 2²² = 4905337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9099595 and 9099604.

It is not an unprimeable number, because it can be changed into a prime (9099611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267620 + ... + 267653.

It is an arithmetic number, because the mean of its divisors is an integer number (2408733).

Almost surely, 2^9099641 is an apocalyptic number.

It is an amenable number.

9099641 is a deficient number, since it is larger than the sum of its proper divisors (535291).

9099641 is a wasteful number, since it uses less digits than its factorization.

9099641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535290.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 9099641 is about 3016.5611215422. The cubic root of 9099641 is about 208.7732023883.

The spelling of 9099641 in words is "nine million, ninety-nine thousand, six hundred forty-one".