741781 has 2 divisors, whose sum is σ = 741782. Its totient is φ = 741780.

The previous prime is 741721. The next prime is 741787. The reversal of 741781 is 187147.

741781 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., 695556 + 46225 = 834^2 + 215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-741781 is a prime.

It is a super-2 number, since 2×741781² = 1100478103922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (741787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370890 + 370891.

It is an arithmetic number, because the mean of its divisors is an integer number (370891).

2⁷⁴¹⁷⁸¹ is an apocalyptic number.

It is an amenable number.

741781 is a deficient number, since it is larger than the sum of its proper divisors (1).

741781 is an equidigital number, since it uses as much as digits as its factorization.

741781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568, while the sum is 28.

The square root of 741781 is about 861.2670898159. The cubic root of 741781 is about 90.5229228789.

The spelling of 741781 in words is "seven hundred forty-one thousand, seven hundred eighty-one".