9804661 has 4 divisors (see below), whose sum is σ = 9821952. Its totient is φ = 9787372.

The previous prime is 9804653. The next prime is 9804677. The reversal of 9804661 is 1664089.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9804661 - 2³ = 9804653 is a prime.

It is a super-2 number, since 2×9804661² = 192262754649842, which contains 22 as substring.

It is a Duffinian number.

9804661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9804061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7765 + ... + 8938.

It is an arithmetic number, because the mean of its divisors is an integer number (2455488).

Almost surely, 2^9804661 is an apocalyptic number.

It is an amenable number.

9804661 is a deficient number, since it is larger than the sum of its proper divisors (17291).

9804661 is a wasteful number, since it uses less digits than its factorization.

9804661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17290.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 9804661 is about 3131.2395309206. The cubic root of 9804661 is about 214.0314173456.

The spelling of 9804661 in words is "nine million, eight hundred four thousand, six hundred sixty-one".