9552661 has 4 divisors (see below), whose sum is σ = 9709324. Its totient is φ = 9396000.

The previous prime is 9552617. The next prime is 9552689. The reversal of 9552661 is 1662559.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5062500 + 4490161 = 2250^2 + 2119^2 .

It is a cyclic number.

It is not a de Polignac number, because 9552661 - 2¹¹ = 9550613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9552461) 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, 78240 + ... + 78361.

It is an arithmetic number, because the mean of its divisors is an integer number (2427331).

Almost surely, 2^9552661 is an apocalyptic number.

It is an amenable number.

9552661 is a deficient number, since it is larger than the sum of its proper divisors (156663).

9552661 is a wasteful number, since it uses less digits than its factorization.

9552661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156662.

The product of its digits is 16200, while the sum is 34.

The square root of 9552661 is about 3090.7379377747. The cubic root of 9552661 is about 212.1817964150.

The spelling of 9552661 in words is "nine million, five hundred fifty-two thousand, six hundred sixty-one".