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9999481 is a prime number
BaseRepresentation
bin100110001001…
…010001111001
3200211000201011
4212021101321
510024440411
6554153521
7150665002
oct46112171
920730634
109999481
11570a838
1234228a1
1320c156b
1414841a9
15d27c21
hex989479

9999481 has 2 divisors, whose sum is σ = 9999482. Its totient is φ = 9999480.

The previous prime is 9999469. The next prime is 9999511. The reversal of 9999481 is 1849999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5760000 + 4239481 = 2400^2 + 2059^2 .

It is a cyclic number.

It is not a de Polignac number, because 9999481 - 29 = 9998969 is a prime.

It is a super-2 number, since 2×99994812 = 199979240538722, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (9999401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999740 + 4999741.

It is an arithmetic number, because the mean of its divisors is an integer number (4999741).

Almost surely, 29999481 is an apocalyptic number.

It is an amenable number.

9999481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999481 is an equidigital number, since it uses as much as digits as its factorization.

9999481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 49.

The square root of 9999481 is about 3162.1955979983. The cubic root of 9999481 is about 215.4397417667.

The spelling of 9999481 in words is "nine million, nine hundred ninety-nine thousand, four hundred eighty-one".