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9955643 is a prime number
BaseRepresentation
bin100101111110…
…100100111011
3200201210120112
4211332210323
510022040033
6553214535
7150423125
oct45764473
920653515
109955643
11568a905
12340144b
1320a7619
141472215
15d19c48
hex97e93b

9955643 has 2 divisors, whose sum is σ = 9955644. Its totient is φ = 9955642.

The previous prime is 9955637. The next prime is 9955651. The reversal of 9955643 is 3465599.

9955643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (3465599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9955643 - 212 = 9951547 is a prime.

It is a super-2 number, since 2×99556432 = 198229655086898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9955643.

It is not a weakly prime, because it can be changed into another prime (9955633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4977821 + 4977822.

It is an arithmetic number, because the mean of its divisors is an integer number (4977822).

Almost surely, 29955643 is an apocalyptic number.

9955643 is a deficient number, since it is larger than the sum of its proper divisors (1).

9955643 is an equidigital number, since it uses as much as digits as its factorization.

9955643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 41.

The square root of 9955643 is about 3155.2564079643. The cubic root of 9955643 is about 215.1244493135.

It can be divided in two parts, 99556 and 43, that added together give a palindrome (99599).

The spelling of 9955643 in words is "nine million, nine hundred fifty-five thousand, six hundred forty-three".