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79396973 is a prime number
BaseRepresentation
bin1001011101110…
…00000001101101
312112101210011122
410232320001231
5130311200343
611513430325
71652602025
oct456700155
9175353148
1079396973
11408aa137
122270b3a5
13135aba76
14a78aa85
156e85068
hex4bb806d

79396973 has 2 divisors, whose sum is σ = 79396974. Its totient is φ = 79396972.

The previous prime is 79396937. The next prime is 79397011. The reversal of 79396973 is 37969397.

Together with previous prime (79396937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68194564 + 11202409 = 8258^2 + 3347^2 .

It is an emirp because it is prime and its reverse (37969397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79396973 - 214 = 79380589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79396913) 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, 39698486 + 39698487.

It is an arithmetic number, because the mean of its divisors is an integer number (39698487).

Almost surely, 279396973 is an apocalyptic number.

It is an amenable number.

79396973 is a deficient number, since it is larger than the sum of its proper divisors (1).

79396973 is an equidigital number, since it uses as much as digits as its factorization.

79396973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1928934, while the sum is 53.

The square root of 79396973 is about 8910.4979097691. The cubic root of 79396973 is about 429.8015543659.

The spelling of 79396973 in words is "seventy-nine million, three hundred ninety-six thousand, nine hundred seventy-three".