9041661 has 12 divisors (see below), whose sum is σ = 13196092. Its totient is φ = 5965056.

The previous prime is 9041657. The next prime is 9041693. The reversal of 9041661 is 1661409.

It can be written as a sum of positive squares in 2 ways, for example, as 4284900 + 4756761 = 2070^2 + 2181^2 .

It is not a de Polignac number, because 9041661 - 2² = 9041657 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9041611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4306 + ... + 6051.

Almost surely, 2^9041661 is an apocalyptic number.

It is an amenable number.

9041661 is a deficient number, since it is larger than the sum of its proper divisors (4154431).

9041661 is a wasteful number, since it uses less digits than its factorization.

9041661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10460 (or 10457 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 9041661 is about 3006.9354831788. The cubic root of 9041661 is about 208.3288452722.

The spelling of 9041661 in words is "nine million, forty-one thousand, six hundred sixty-one".