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79900099 is a prime number
BaseRepresentation
bin1001100001100…
…10110111000011
312120100100022221
410300302313003
5130423300344
611532311511
71660065616
oct460626703
9176310287
1079900099
1141113144
1222912597
1313726a86
14a87c17d
157034184
hex4c32dc3

79900099 has 2 divisors, whose sum is σ = 79900100. Its totient is φ = 79900098.

The previous prime is 79900081. The next prime is 79900109. The reversal of 79900099 is 99000997.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79900099 - 29 = 79899587 is a prime.

It is not a weakly prime, because it can be changed into another prime (79900019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39950049 + 39950050.

It is an arithmetic number, because the mean of its divisors is an integer number (39950050).

Almost surely, 279900099 is an apocalyptic number.

79900099 is a deficient number, since it is larger than the sum of its proper divisors (1).

79900099 is an equidigital number, since it uses as much as digits as its factorization.

79900099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45927, while the sum is 43.

The square root of 79900099 is about 8938.6855297633. The cubic root of 79900099 is about 430.7075048125.

The spelling of 79900099 in words is "seventy-nine million, nine hundred thousand, ninety-nine".