743465221 has 2 divisors, whose sum is σ = 743465222. Its totient is φ = 743465220.

The previous prime is 743465213. The next prime is 743465237. The reversal of 743465221 is 122564347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 723341025 + 20124196 = 26895^2 + 4486^2 .

It is an emirp because it is prime and its reverse (122564347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 743465221 - 2³ = 743465213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (743465201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371732610 + 371732611.

It is an arithmetic number, because the mean of its divisors is an integer number (371732611).

Almost surely, 2^743465221 is an apocalyptic number.

It is an amenable number.

743465221 is a deficient number, since it is larger than the sum of its proper divisors (1).

743465221 is an equidigital number, since it uses as much as digits as its factorization.

743465221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 743465221 is about 27266.5586570803. The cubic root of 743465221 is about 905.9138215246.

The spelling of 743465221 in words is "seven hundred forty-three million, four hundred sixty-five thousand, two hundred twenty-one".