840773 has 4 divisors (see below), whose sum is σ = 842688. Its totient is φ = 838860.

The previous prime is 840767. The next prime is 840817. The reversal of 840773 is 377048.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 840773 - 2⁴ = 840757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68 + ... + 1298.

It is an arithmetic number, because the mean of its divisors is an integer number (210672).

2⁸⁴⁰⁷⁷³ is an apocalyptic number.

It is an amenable number.

840773 is a deficient number, since it is larger than the sum of its proper divisors (1915).

840773 is a wasteful number, since it uses less digits than its factorization.

840773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 840773 is about 916.9367480912. The cubic root of 840773 is about 94.3828134110.

The spelling of 840773 in words is "eight hundred forty thousand, seven hundred seventy-three".