840733 has 2 divisors, whose sum is σ = 840734. Its totient is φ = 840732.

The previous prime is 840727. The next prime is 840743. The reversal of 840733 is 337048.

840733 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., 708964 + 131769 = 842^2 + 363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-840733 is a prime.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 840698 and 840707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (840703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420366 + 420367.

It is an arithmetic number, because the mean of its divisors is an integer number (420367).

2⁸⁴⁰⁷³³ is an apocalyptic number.

It is an amenable number.

840733 is a deficient number, since it is larger than the sum of its proper divisors (1).

840733 is an equidigital number, since it uses as much as digits as its factorization.

840733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 840733 is about 916.9149360764. The cubic root of 840733 is about 94.3813166247.

The spelling of 840733 in words is "eight hundred forty thousand, seven hundred thirty-three".