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99999073 is a prime number
BaseRepresentation
bin1011111010111…
…01110101100001
320222011110221101
411331131311201
5201044432243
613531154401
72322656326
oct575356541
9228143841
1099999073
11514a0869
12295a5a01
1317943265
14d3d0b4d
158ba454d
hex5f5dd61

99999073 has 2 divisors, whose sum is σ = 99999074. Its totient is φ = 99999072.

The previous prime is 99999043. The next prime is 99999077. The reversal of 99999073 is 37099999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98168464 + 1830609 = 9908^2 + 1353^2 .

It is an emirp because it is prime and its reverse (37099999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-99999073 is a prime.

It is not a weakly prime, because it can be changed into another prime (99999077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49999536 + 49999537.

It is an arithmetic number, because the mean of its divisors is an integer number (49999537).

Almost surely, 299999073 is an apocalyptic number.

It is an amenable number.

99999073 is a deficient number, since it is larger than the sum of its proper divisors (1).

99999073 is an equidigital number, since it uses as much as digits as its factorization.

99999073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1240029, while the sum is 55.

The square root of 99999073 is about 9999.9536498926. The cubic root of 99999073 is about 464.1574491059.

The spelling of 99999073 in words is "ninety-nine million, nine hundred ninety-nine thousand, seventy-three".