742289 has 2 divisors, whose sum is σ = 742290. Its totient is φ = 742288.

The previous prime is 742283. The next prime is 742307. The reversal of 742289 is 982247.

742289 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 can be written as a sum of positive squares in only one way, i.e., 693889 + 48400 = 833^2 + 220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742289 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (742283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371144 + 371145.

It is an arithmetic number, because the mean of its divisors is an integer number (371145).

2⁷⁴²²⁸⁹ is an apocalyptic number.

It is an amenable number.

742289 is a deficient number, since it is larger than the sum of its proper divisors (1).

742289 is an equidigital number, since it uses as much as digits as its factorization.

742289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 742289 is about 861.5619536632. The cubic root of 742289 is about 90.5435826833.

The spelling of 742289 in words is "seven hundred forty-two thousand, two hundred eighty-nine".