740549 has 2 divisors, whose sum is σ = 740550. Its totient is φ = 740548.

The previous prime is 740533. The next prime is 740561. The reversal of 740549 is 945047.

740549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372100 + 368449 = 610^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 740549 - 2⁴ = 740533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370274 + 370275.

It is an arithmetic number, because the mean of its divisors is an integer number (370275).

2⁷⁴⁰⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

740549 is a deficient number, since it is larger than the sum of its proper divisors (1).

740549 is an equidigital number, since it uses as much as digits as its factorization.

740549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 740549 is about 860.5515673102. The cubic root of 740549 is about 90.4727795795.

The spelling of 740549 in words is "seven hundred forty thousand, five hundred forty-nine".