743260649 has 2 divisors, whose sum is σ = 743260650. Its totient is φ = 743260648.

The previous prime is 743260631. The next prime is 743260673. The reversal of 743260649 is 946062347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379977049 + 363283600 = 19493^2 + 19060^2 .

It is a cyclic number.

It is not a de Polignac number, because 743260649 - 2²⁰ = 742212073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (743260849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371630324 + 371630325.

It is an arithmetic number, because the mean of its divisors is an integer number (371630325).

Almost surely, 2^743260649 is an apocalyptic number.

It is an amenable number.

743260649 is a deficient number, since it is larger than the sum of its proper divisors (1).

743260649 is an equidigital number, since it uses as much as digits as its factorization.

743260649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 743260649 is about 27262.8070638370. The cubic root of 743260649 is about 905.8307234420.

The spelling of 743260649 in words is "seven hundred forty-three million, two hundred sixty thousand, six hundred forty-nine".