840323 has 8 divisors (see below), whose sum is σ = 929280. Its totient is φ = 753480.

The previous prime is 840319. The next prime is 840331. The reversal of 840323 is 323048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 840323 - 2² = 840319 is a prime.

It is a super-2 number, since 2×840323² = 1412285488658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 840295 and 840304.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 840323.

It is not an unprimeable number, because it can be changed into a prime (840353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386 + ... + 1352.

It is an arithmetic number, because the mean of its divisors is an integer number (116160).

2⁸⁴⁰³²³ is an apocalyptic number.

840323 is a deficient number, since it is larger than the sum of its proper divisors (88957).

840323 is a wasteful number, since it uses less digits than its factorization.

840323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 840323 is about 916.6913330015. The cubic root of 840323 is about 94.3659718276.

The spelling of 840323 in words is "eight hundred forty thousand, three hundred twenty-three".