742216843 has 2 divisors, whose sum is σ = 742216844. Its totient is φ = 742216842.

The previous prime is 742216841. The next prime is 742216847. The reversal of 742216843 is 348612247.

742216843 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 a cyclic number.

It is not a de Polignac number, because 742216843 - 2¹ = 742216841 is a prime.

Together with 742216841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (742216841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371108421 + 371108422.

It is an arithmetic number, because the mean of its divisors is an integer number (371108422).

Almost surely, 2^742216843 is an apocalyptic number.

742216843 is a deficient number, since it is larger than the sum of its proper divisors (1).

742216843 is an equidigital number, since it uses as much as digits as its factorization.

742216843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 37.

The square root of 742216843 is about 27243.6569314767. The cubic root of 742216843 is about 905.4064871152.

The spelling of 742216843 in words is "seven hundred forty-two million, two hundred sixteen thousand, eight hundred forty-three".