816383 has 8 divisors (see below), whose sum is σ = 844560. Its totient is φ = 788800.

The previous prime is 816377. The next prime is 816401. The reversal of 816383 is 383618.

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 816383 - 2⁴ = 816367 is a prime.

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

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 816383.

It is not an unprimeable number, because it can be changed into a prime (816353) 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, 5891 + ... + 6027.

It is an arithmetic number, because the mean of its divisors is an integer number (105570).

2⁸¹⁶³⁸³ is an apocalyptic number.

816383 is a deficient number, since it is larger than the sum of its proper divisors (28177).

816383 is a wasteful number, since it uses less digits than its factorization.

816383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its digits is 3456, while the sum is 29.

The square root of 816383 is about 903.5391524444. The cubic root of 816383 is about 93.4611923939.

The spelling of 816383 in words is "eight hundred sixteen thousand, three hundred eighty-three".