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9899993 is a prime number
BaseRepresentation
bin100101110000…
…111111011001
3200121222020102
4211300333121
510013244433
6552105145
7150101645
oct45607731
920558212
109899993
115652014
1233951b5
1320881ac
141459c25
15d084e8
hex970fd9

9899993 has 2 divisors, whose sum is σ = 9899994. Its totient is φ = 9899992.

The previous prime is 9899977. The next prime is 9899999. The reversal of 9899993 is 3999989.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9048064 + 851929 = 3008^2 + 923^2 .

It is a cyclic number.

It is not a de Polignac number, because 9899993 - 24 = 9899977 is a prime.

It is a super-2 number, since 2×98999932 = 196019722800098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9899999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4949996 + 4949997.

It is an arithmetic number, because the mean of its divisors is an integer number (4949997).

Almost surely, 29899993 is an apocalyptic number.

It is an amenable number.

9899993 is a deficient number, since it is larger than the sum of its proper divisors (1).

9899993 is an equidigital number, since it uses as much as digits as its factorization.

9899993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1417176, while the sum is 56.

The square root of 9899993 is about 3146.4254321372. The cubic root of 9899993 is about 214.7228662938.

The spelling of 9899993 in words is "nine million, eight hundred ninety-nine thousand, nine hundred ninety-three".