9845661 has 8 divisors (see below), whose sum is σ = 15002944. Its totient is φ = 5626080.

The previous prime is 9845657. The next prime is 9845677. The reversal of 9845661 is 1665489.

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

It is not a de Polignac number, because 9845661 - 2² = 9845657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9845681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234400 + ... + 234441.

It is an arithmetic number, because the mean of its divisors is an integer number (1875368).

Almost surely, 2^9845661 is an apocalyptic number.

It is an amenable number.

9845661 is a deficient number, since it is larger than the sum of its proper divisors (5157283).

9845661 is a wasteful number, since it uses less digits than its factorization.

9845661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468851.

The product of its digits is 51840, while the sum is 39.

The square root of 9845661 is about 3137.7796289733. The cubic root of 9845661 is about 214.3293397528.

The spelling of 9845661 in words is "nine million, eight hundred forty-five thousand, six hundred sixty-one".