75423793 has 2 divisors, whose sum is σ = 75423794. Its totient is φ = 75423792.

The previous prime is 75423791. The next prime is 75423827. The reversal of 75423793 is 39732457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41177889 + 34245904 = 6417^2 + 5852^2 .

It is a cyclic number.

It is not a de Polignac number, because 75423793 - 2¹ = 75423791 is a prime.

Together with 75423791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (75423791) 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, 37711896 + 37711897.

It is an arithmetic number, because the mean of its divisors is an integer number (37711897).

Almost surely, 2^75423793 is an apocalyptic number.

It is an amenable number.

75423793 is a deficient number, since it is larger than the sum of its proper divisors (1).

75423793 is an equidigital number, since it uses as much as digits as its factorization.

75423793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 40.

The square root of 75423793 is about 8684.6872712839. The cubic root of 75423793 is about 422.5091542430.

The spelling of 75423793 in words is "seventy-five million, four hundred twenty-three thousand, seven hundred ninety-three".