9955641 has 4 divisors (see below), whose sum is σ = 13274192. Its totient is φ = 6637092.

The previous prime is 9955637. The next prime is 9955643. The reversal of 9955641 is 1465599.

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 not a de Polignac number, because 9955641 - 2² = 9955637 is a prime.

It is a super-2 number, since 2×9955641² = 198229575441762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9955641.

It is not an unprimeable number, because it can be changed into a prime (9955643) 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, 1659271 + ... + 1659276.

It is an arithmetic number, because the mean of its divisors is an integer number (3318548).

Almost surely, 2^9955641 is an apocalyptic number.

It is an amenable number.

9955641 is a deficient number, since it is larger than the sum of its proper divisors (3318551).

9955641 is a wasteful number, since it uses less digits than its factorization.

9955641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318550.

The product of its digits is 48600, while the sum is 39.

The square root of 9955641 is about 3155.2560910329. The cubic root of 9955641 is about 215.1244349080.

The spelling of 9955641 in words is "nine million, nine hundred fifty-five thousand, six hundred forty-one".