816343 has 8 divisors (see below), whose sum is σ = 910080. Its totient is φ = 725880.

The previous prime is 816341. The next prime is 816353. The reversal of 816343 is 343618.

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 816343 - 2¹ = 816341 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

816343 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816341) 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, 273 + ... + 1306.

It is an arithmetic number, because the mean of its divisors is an integer number (113760).

2⁸¹⁶³⁴³ is an apocalyptic number.

816343 is a deficient number, since it is larger than the sum of its proper divisors (93737).

816343 is a wasteful number, since it uses less digits than its factorization.

816343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637.

The product of its digits is 1728, while the sum is 25.

The square root of 816343 is about 903.5170169953. The cubic root of 816343 is about 93.4596659418.

The spelling of 816343 in words is "eight hundred sixteen thousand, three hundred forty-three".