840533741 has 2 divisors, whose sum is σ = 840533742. Its totient is φ = 840533740.

The previous prime is 840533719. The next prime is 840533797. The reversal of 840533741 is 147335048.

840533741 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., 473236516 + 367297225 = 21754^2 + 19165^2 .

It is a cyclic number.

It is not a de Polignac number, because 840533741 - 2²² = 836339437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (840533641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420266870 + 420266871.

It is an arithmetic number, because the mean of its divisors is an integer number (420266871).

Almost surely, 2^840533741 is an apocalyptic number.

It is an amenable number.

840533741 is a deficient number, since it is larger than the sum of its proper divisors (1).

840533741 is an equidigital number, since it uses as much as digits as its factorization.

840533741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 840533741 is about 28991.9599371964. The cubic root of 840533741 is about 943.7385971401.

Adding to 840533741 its reverse (147335048), we get a palindrome (987868789).

The spelling of 840533741 in words is "eight hundred forty million, five hundred thirty-three thousand, seven hundred forty-one".