740010643 has 2 divisors, whose sum is σ = 740010644. Its totient is φ = 740010642.

The previous prime is 740010589. The next prime is 740010773. The reversal of 740010643 is 346010047.

740010643 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 (346010047) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-740010643 is a prime.

It is not a weakly prime, because it can be changed into another prime (740010343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370005321 + 370005322.

It is an arithmetic number, because the mean of its divisors is an integer number (370005322).

Almost surely, 2^740010643 is an apocalyptic number.

740010643 is a deficient number, since it is larger than the sum of its proper divisors (1).

740010643 is an equidigital number, since it uses as much as digits as its factorization.

740010643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 740010643 is about 27203.1366389981. The cubic root of 740010643 is about 904.5085059536.

The spelling of 740010643 in words is "seven hundred forty million, ten thousand, six hundred forty-three".