734543993 has 2 divisors, whose sum is σ = 734543994. Its totient is φ = 734543992.

The previous prime is 734543983. The next prime is 734544001. The reversal of 734543993 is 399345437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522899689 + 211644304 = 22867^2 + 14548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-734543993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_37946648 and since 734543993 and 37946648 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (734543983) 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, 367271996 + 367271997.

It is an arithmetic number, because the mean of its divisors is an integer number (367271997).

Almost surely, 2^734543993 is an apocalyptic number.

It is an amenable number.

734543993 is a deficient number, since it is larger than the sum of its proper divisors (1).

734543993 is an equidigital number, since it uses as much as digits as its factorization.

734543993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 47.

The square root of 734543993 is about 27102.4720828193. The cubic root of 734543993 is about 902.2757194187.

The spelling of 734543993 in words is "seven hundred thirty-four million, five hundred forty-three thousand, nine hundred ninety-three".