740710643 has 2 divisors, whose sum is σ = 740710644. Its totient is φ = 740710642.

The previous prime is 740710637. The next prime is 740710657. The reversal of 740710643 is 346017047.

It is a happy number.

740710643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (346017047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 740710643 - 2²⁰ = 739662067 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (740710693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370355321 + 370355322.

It is an arithmetic number, because the mean of its divisors is an integer number (370355322).

Almost surely, 2^740710643 is an apocalyptic number.

740710643 is a deficient number, since it is larger than the sum of its proper divisors (1).

740710643 is an equidigital number, since it uses as much as digits as its factorization.

740710643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 740710643 is about 27215.9997611699. Note that the first 3 decimals coincide. The cubic root of 740710643 is about 904.7936173567.

The spelling of 740710643 in words is "seven hundred forty million, seven hundred ten thousand, six hundred forty-three".