743842213 has 8 divisors (see below), whose sum is σ = 762514200. Its totient is φ = 725195520.

The previous prime is 743842189. The next prime is 743842223. The reversal of 743842213 is 312248347.

It can be written as a sum of positive squares in 4 ways, for example, as 49098049 + 694744164 = 7007^2 + 26358^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 743842213 - 2⁵ = 743842181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743842223) 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 in 7 ways as a sum of consecutive naturals, for example, 62463 + ... + 73411.

It is an arithmetic number, because the mean of its divisors is an integer number (95314275).

Almost surely, 2^743842213 is an apocalyptic number.

It is an amenable number.

743842213 is a deficient number, since it is larger than the sum of its proper divisors (18671987).

743842213 is a wasteful number, since it uses less digits than its factorization.

743842213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12647.

The product of its digits is 32256, while the sum is 34.

The square root of 743842213 is about 27273.4708645599. The cubic root of 743842213 is about 906.0669174795.

The spelling of 743842213 in words is "seven hundred forty-three million, eight hundred forty-two thousand, two hundred thirteen".