75848009 has 2 divisors, whose sum is σ = 75848010. Its totient is φ = 75848008.

The previous prime is 75847987. The next prime is 75848011. The reversal of 75848009 is 90084857.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57760000 + 18088009 = 7600^2 + 4253^2 .

It is an emirp because it is prime and its reverse (90084857) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75848009 - 2¹² = 75843913 is a prime.

Together with 75848011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75848609) 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, 37924004 + 37924005.

It is an arithmetic number, because the mean of its divisors is an integer number (37924005).

Almost surely, 2^75848009 is an apocalyptic number.

It is an amenable number.

75848009 is a deficient number, since it is larger than the sum of its proper divisors (1).

75848009 is an equidigital number, since it uses as much as digits as its factorization.

75848009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 75848009 is about 8709.0762426333. The cubic root of 75848009 is about 423.2997984609.

The spelling of 75848009 in words is "seventy-five million, eight hundred forty-eight thousand, nine".