75405793 has 2 divisors, whose sum is σ = 75405794. Its totient is φ = 75405792.

The previous prime is 75405791. The next prime is 75405839. The reversal of 75405793 is 39750457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57866449 + 17539344 = 7607^2 + 4188^2 .

It is an emirp because it is prime and its reverse (39750457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75405793 - 2¹ = 75405791 is a prime.

Together with 75405791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (75405791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37702896 + 37702897.

It is an arithmetic number, because the mean of its divisors is an integer number (37702897).

Almost surely, 2^75405793 is an apocalyptic number.

It is an amenable number.

75405793 is a deficient number, since it is larger than the sum of its proper divisors (1).

75405793 is an equidigital number, since it uses as much as digits as its factorization.

75405793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 75405793 is about 8683.6509027022. The cubic root of 75405793 is about 422.4755407569.

The spelling of 75405793 in words is "seventy-five million, four hundred five thousand, seven hundred ninety-three".