743241643 has 2 divisors, whose sum is σ = 743241644. Its totient is φ = 743241642.

The previous prime is 743241641. The next prime is 743241659. The reversal of 743241643 is 346142347.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 743241643 - 2¹ = 743241641 is a prime.

Together with 743241641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 743241599 and 743241608.

It is not a weakly prime, because it can be changed into another prime (743241641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371620821 + 371620822.

It is an arithmetic number, because the mean of its divisors is an integer number (371620822).

Almost surely, 2^743241643 is an apocalyptic number.

743241643 is a deficient number, since it is larger than the sum of its proper divisors (1).

743241643 is an equidigital number, since it uses as much as digits as its factorization.

743241643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 34.

The square root of 743241643 is about 27262.4584914861. The cubic root of 743241643 is about 905.8230023438.

The spelling of 743241643 in words is "seven hundred forty-three million, two hundred forty-one thousand, six hundred forty-three".